{"product_id":"stihl-4140-engine-service-manual","title":"Stihl Basic Engine 4140 Service Manual","description":"\u003cdiv style=\"width: 100%; margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif; line-height: 1.6; color: #2d3748; background: #f3f6f8;\"\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0073b1; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #0073b1 0%, #004471 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 🏷️ Basic Information\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Identification\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Make:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Stihl\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Product Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Basic Engine (powerhead \/ short block assembly)\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Engine Family:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n 4140 series\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Model Designation:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n 4140\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Covered Models:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Stihl equipment powered by the 4140 basic engine series\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Production Years:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - production range not specified in the supplied description\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Document Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Service manual, digital PDF download\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Intended Use:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Professional service technicians and experienced DIY repair\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n How to Verify Your Unit\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Locate Model Plate:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Check the model and serial number plate on the powerhead housing\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Confirm Engine Family:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Match the 4140 designation on the housing or crankcase before ordering\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #378fe9; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #378fe9 0%, #1e5f99 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 👋 Introduction\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7fa; border-left: 4px solid #378fe9; padding: 12px 16px; font-weight: 600; color: #1e5f99; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #378fe9; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Positioning\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Target Audience:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Stihl dealer technicians, independent small-engine shops, and competent DIY owners\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Purpose:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Supports maintenance, diagnosis, repair, and overhaul of the 4140 basic engine\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Assumed Skill Level:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Comfortable with hand tools, torque wrenches, and small two-stroke engine work\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7fa; border-left: 4px solid #378fe9; padding: 12px 16px; font-weight: 600; color: #1e5f99; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #378fe9; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Why This Manual\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Scope Advantage:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Covers the powerhead assembly rather than a single finished tool, so one manual supports multiple 4140-powered units\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Procedure Depth:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Step-by-step disassembly, inspection, repair, and reassembly with specifications\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Reference Value:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Factory torque values, wear limits, and fluid capacities in one document\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Practicality:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Searchable PDF that can be printed page-by-page for shop-floor use\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7fa; border-left: 4px solid #378fe9; padding: 12px 16px; font-weight: 600; color: #1e5f99; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #378fe9; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Key Features\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Diagnostic Guidance:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Troubleshooting flow covering compression, ignition, and fuel delivery faults\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Overhaul Support:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Crankcase, crankshaft, piston, and cylinder service procedures\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Component Rebuild:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Carburetor, ignition module, and recoil starter service\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7fa;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1e5f99; font-size: 15px; margin-bottom: 6px;\"\u003e\n Instant Access:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Downloaded immediately after purchase, no shipping or waiting\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #1a5490; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #1a5490 0%, #0d3d6b 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 📋 Manual Details\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f5f8; border-left: 4px solid #1a5490; padding: 12px 16px; font-weight: 600; color: #0d3d6b; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1a5490; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Document\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Manual Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Factory-style service and repair manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n File Format:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n PDF\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Delivery Method:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Instant digital download\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Binding:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Digital, no physical binding\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Language:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n English\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Page Count:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - exact page count not stated in the supplied description\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Illustrations:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Technical diagrams and exploded views supporting the procedures\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f5f8; border-left: 4px solid #1a5490; padding: 12px 16px; font-weight: 600; color: #0d3d6b; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1a5490; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Coverage Areas\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Engine Mechanical:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Cylinder, piston, crankshaft, crankcase, and seals\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel System:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Carburetor, fuel lines, filter, and tank venting\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Ignition System:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Ignition module, flywheel, air gap, and kill circuit\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Starting System:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Recoil starter, rope, spring, and pawl\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fasteners and Torque:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Tightening sequences and specified torque values\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f5f8; border-left: 4px solid #1a5490; padding: 12px 16px; font-weight: 600; color: #0d3d6b; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1a5490; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Usage Notes\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n File Access:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Open with any standard PDF reader on desktop, tablet, or phone\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Printing:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Printable for personal shop use\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Searchability:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Text-searchable so you can jump straight to a component\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0d3d6b; font-size: 15px; margin-bottom: 6px;\"\u003e\n Single Vehicle Focus:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Written specifically for the 4140 basic engine, not a generic small-engine guide\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #2867b2; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #2867b2 0%, #1a4d80 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 📖 Manual Coverage\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f9; border-left: 4px solid #2867b2; padding: 12px 16px; font-weight: 600; color: #1a4d80; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2867b2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Engine Mechanical Procedures\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Engine Removal:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Steps to separate the powerhead from the application and prepare for bench work\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Cylinder and Piston:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Removal, inspection, measurement, and replacement including ring end gap\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Crankshaft and Bearings:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Inspection of journals, bearing condition, and replacement procedures\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Crankcase Service:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Splitting, cleaning, seal replacement, and reassembly with sealant where specified\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Cylinder Bolt Torque:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Tightening sequence and specified torque values\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Compression Testing:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Method and interpretation of results to judge top-end condition\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Leak and Vacuum Testing:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Procedure for checking crankcase seals and gasket integrity\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f9; border-left: 4px solid #2867b2; padding: 12px 16px; font-weight: 600; color: #1a4d80; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2867b2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Fuel and Carburetion\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Carburetor Removal:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Disconnection, mounting hardware, and intake components\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Carburetor Disassembly:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Metering diaphragm, gasket stack, needle, and screen cleaning\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Carburetor Adjustment:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Idle and high-speed mixture screw setting procedure\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Lines and Filter:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Routing, replacement, and pickup body service\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Tank Vent:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Inspection and replacement of the tank vent valve\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f9; border-left: 4px solid #2867b2; padding: 12px 16px; font-weight: 600; color: #1a4d80; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2867b2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Ignition and Electrical\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Ignition Module:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Testing, removal, and replacement\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Air Gap Setting:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Flywheel-to-module air gap adjustment\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Flywheel Service:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Removal and installation, including key and taper inspection\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Stop Switch Circuit:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Continuity testing of the kill switch wiring\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f9; border-left: 4px solid #2867b2; padding: 12px 16px; font-weight: 600; color: #1a4d80; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2867b2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Starter and Rewind\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Recoil Starter:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Disassembly, spring replacement, rope fitting, and pretension\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Pawl and Drum:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Inspection and replacement of engagement components\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f9; border-left: 4px solid #2867b2; padding: 12px 16px; font-weight: 600; color: #1a4d80; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2867b2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Specifications and Reference\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Torque Tables:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Fastener torque values collected for quick reference\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Service Limits:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Wear limits for piston, cylinder, and bearings where specified\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fluid Capacities:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Fuel mix ratio and lubrication requirements for the family\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a4d80; font-size: 15px; margin-bottom: 6px;\"\u003e\n Troubleshooting Charts:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Symptoms mapped to likely causes and corrective actions\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0a66c2; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #0a66c2 0%, #004182 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 📊 Manual Specifications\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f5f9; border-left: 4px solid #0a66c2; padding: 12px 16px; font-weight: 600; color: #004182; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0a66c2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n File \u0026amp; Compatibility\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n File Format:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n PDF (searchable, bookmarked, zoomable)\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Compatibility:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Windows, macOS, Linux, iOS, and Android — any device with a PDF reader\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Requirements:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n A PDF reader application (e.g. Adobe Acrobat Reader, free)\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Searchability:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Fully text searchable for fast lookup of any topic\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f5f9; border-left: 4px solid #0a66c2; padding: 12px 16px; font-weight: 600; color: #004182; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0a66c2; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Print \u0026amp; Binding\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Print Quality:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n High-resolution digital pages, printable at full clarity\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Binding Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #666666; background: #f5f5f5; padding: 8px 12px; border-radius: 8px; border: 1px solid #d0d0d0; font-weight: 600; font-size: 14px;\"\u003e\n N\/A — digital download, no physical binding\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f5f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004182; font-size: 15px; margin-bottom: 6px;\"\u003e\n Paper Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #666666; background: #f5f5f5; padding: 8px 12px; border-radius: 8px; border: 1px solid #d0d0d0; font-weight: 600; font-size: 14px;\"\u003e\n N\/A — digital download, no physical paper\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #4a90a4; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #4a90a4 0%, #2c5f75 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n ⚙️ Engine Specifications\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Engine Type\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Design:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Single-cylinder, two-stroke gasoline engine\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Cooling:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Forced air cooling via flywheel fan\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Displacement Range:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - exact displacement varies by 4140 application and is not stated in the supplied description\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Bore and Stroke:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - refer to the specification table in the manual for your application\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Fuel and Ignition\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel System:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Diaphragm-type carburetor with integrated fuel pump\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Mix:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Gasoline mixed with two-stroke engine oil; confirm the exact ratio in the manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Ignition:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Electronic ignition module triggered by flywheel magnets\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Starting:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Manual recoil starter\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #4a90a4; padding: 12px 16px; font-weight: 600; color: #2c5f75; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #4a90a4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Performance\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Power Output:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - output figures differ across 4140-powered models\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Idle Speed:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Set per the carburetor adjustment procedure in the manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #2c5f75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Maximum Engine Speed:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - verify with a tachometer against the specification for your unit\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #5a7c8a; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #5a7c8a 0%, #3d5762 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 🔧 Transmission\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f5f7f8; border-left: 4px solid #5a7c8a; padding: 12px 16px; font-weight: 600; color: #3d5762; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #5a7c8a; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Drive\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Type:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Direct drive from the engine crankshaft to the implement; no gearbox transmission\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Clutch:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Centrifugal clutch engaging the drive at operating speed\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Clutch Drum:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Driven drum and bearing require inspection for wear and lubrication\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f5f7f8; border-left: 4px solid #5a7c8a; padding: 12px 16px; font-weight: 600; color: #3d5762; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #5a7c8a; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Service\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Clutch Removal:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Procedure using the correct locking tool and rotation direction\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Sprocket or Drive:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Inspection of the drive sprocket and replacement interval\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f5f7f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #3d5762; font-size: 15px; margin-bottom: 6px;\"\u003e\n Lubrication:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Grease specification and interval for the clutch drum bearing where fitted\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #1b659d; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #1b659d 0%, #0f4471 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 📐 Dimensions\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f6f8; border-left: 4px solid #1b659d; padding: 12px 16px; font-weight: 600; color: #0f4471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1b659d; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Exterior\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Wheelbase:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - not applicable to a handheld powerhead assembly\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Overall Length:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - varies with the application the engine is fitted to\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Overall Width:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - varies with the application\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Overall Height:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - varies with the application\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f2f6f8; border-left: 4px solid #1b659d; padding: 12px 16px; font-weight: 600; color: #0f4471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #1b659d; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Weight\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Dry Weight:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - depends on the complete unit configuration\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Shipping Weight:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - digital download, no physical shipment\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f2f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #0f4471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Note:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Consult the specification table for the finished tool rather than the bare engine\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #2e5984; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #2e5984 0%, #1a3c5c 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 🛡️ Safety Features\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #2e5984; padding: 12px 16px; font-weight: 600; color: #1a3c5c; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2e5984; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Operator Protection\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Stop Switch:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Kill switch interrupts ignition for immediate shutdown\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Throttle Interlock:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Trigger lockout that must be depressed before the throttle can be applied\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Vibration Damping:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Anti-vibration mounts reduce hand-arm vibration where the application uses them\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Muffler:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Spark-arresting muffler where required by regulation\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #2e5984; padding: 12px 16px; font-weight: 600; color: #1a3c5c; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #2e5984; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Service Safety\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Handling:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Drain and store fuel safely before any repair work\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Isolation:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Disconnect the spark plug boot before disassembly\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Hot Surfaces:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Allow the engine to cool before working on the cylinder or muffler\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1a3c5c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Ratings:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - crash test ratings do not apply to this product category\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #3b82c4; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #3b82c4 0%, #1f4a75 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 💡 Technology Features\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #3b82c4; padding: 12px 16px; font-weight: 600; color: #1f4a75; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #3b82c4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Engine Management\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Ignition Control:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Solid-state ignition module, no points to adjust\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Metering:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Diaphragm carburetor with adjustable idle and high-speed circuits\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Air Filtration:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Serviceable air filter element protecting the intake\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f4f7f9; border-left: 4px solid #3b82c4; padding: 12px 16px; font-weight: 600; color: #1f4a75; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #3b82c4; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Diagnostics\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Compression Check:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Standard gauge test described in the manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Spark Test:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Ignition output verification using a suitable tester\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Pressure and Vacuum Test:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Crankcase sealing check for lean-running and hard-start faults\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f4f7f9;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #1f4a75; font-size: 15px; margin-bottom: 6px;\"\u003e\n Infotainment:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - not applicable to this product category\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0077b5; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #0077b5 0%, #00405c 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 🔧 Maintenance\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Service Intervals\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Air Filter:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Clean or replace at the interval given in the manual; sooner in dusty conditions\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Spark Plug:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Inspect and gap periodically; replace when electrodes are worn\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Filter:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Replace on the schedule in the manual or if fuel starvation appears\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Cylinder Fins:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Keep cooling fins and blower housing clear of debris\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fasteners:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Check accessible fasteners for tightness at regular service\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Fluids\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Mix:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Gasoline plus two-stroke oil at the ratio specified in the manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Storage:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Use fresh fuel; avoid long storage with mixed fuel in the tank\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Clutch Bearing Grease:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Apply the specified grease to the clutch drum bearing where fitted\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0077b5; padding: 12px 16px; font-weight: 600; color: #00405c; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0077b5; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Known Wear Items\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Piston Ring:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Normal wear reduces compression and power over time\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Crankcase Seals:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Age-hardened seals cause lean running and difficult starting\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Carburetor Diaphragm:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Hardens with fuel exposure and affects metering\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Starter Rope and Spring:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Common failure points on high-hour units\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #00405c; font-size: 15px; margin-bottom: 6px;\"\u003e\n Fuel Lines:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Become brittle and crack, allowing air into the fuel system\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0073b1; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #0073b1 0%, #004471 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 📚 Vehicle History\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Brand Heritage\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Manufacturer:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Andreas Stihl AG \u0026amp; Co. KG\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Origin:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n German manufacturer with a global service network\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Reputation:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Widely used in professional forestry, landscaping, and arborist work\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Engine Family\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n 4140 Series:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n A basic engine platform shared across multiple Stihl tools of its generation\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Model Evolution:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - detailed change history not stated in the supplied description\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Production Location:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - plant of manufacture varies by model and market\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"width: 100%; margin: 0; margin-bottom: 2px; background: white; overflow: hidden; border: 1px solid #0073b1; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;\"\u003e\n \u003cdiv style=\"background: linear-gradient(135deg, #0073b1 0%, #004471 100%); color: white; padding: 16px; text-align: center;\"\u003e\n \u003cdiv style=\"font-size: 20px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.5px;\"\u003e\n 🏆 Awards \u0026amp; Recognition\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Recognition\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Model Awards:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n N\/A - specific awards not stated in the supplied description\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Industry Standing:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Stihl power equipment is widely recognized for durability in professional use\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Manual Value:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Service documentation is valued by technicians keeping older 4140-powered units in service\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"background: #f3f6f8; border-left: 4px solid #0073b1; padding: 12px 16px; font-weight: 600; color: #004471; font-size: 16px; position: relative;\"\u003e\n \u003cdiv style=\"display: inline-block; width: 6px; height: 6px; background: #0073b1; border-radius: 50%; margin-right: 8px;\"\u003e\u003c\/div\u003e\n Ownership Notes\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Collector Interest:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Older 4140-powered tools remain in service and are supported by this manual\n \u003c\/div\u003e\n \u003c\/div\u003e\n\n \u003cdiv style=\"padding: 12px 16px; border-bottom: 1px solid #f3f6f8;\"\u003e\n \u003cdiv style=\"font-weight: 600; color: #004471; font-size: 15px; margin-bottom: 6px;\"\u003e\n Resale Support:\n \u003c\/div\u003e\n \u003cdiv style=\"color: #4a5568; line-height: 1.6; word-wrap: break-word; font-size: 14px;\"\u003e\n Documented maintenance and correct repair help preserve resale value\n \u003c\/div\u003e\n \u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Stihl","offers":[{"title":"Default Title","offer_id":44009891725492,"sku":"55526","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/4746\/1044\/files\/55526-stihl-basic-engine-4140-service-manual-pdf-download.jpg?v=1755257691","url":"https:\/\/emanual.com\/pl\/products\/stihl-4140-engine-service-manual","provider":"eManual Online Vehicle Workshop Repair Manuals","version":"1.0","type":"link"}