Target Audience:
Yamaha SR250 owners and independent mechanics
Alternative Formats:
Compares favorably to physical manuals, offering convenience and cost-effectiveness
Completeness:
Complete and intact, no missing or corrupt parts/pages
Accuracy:
Original Yamaha workshop manual, factory-written
Usability:
Detailed diagrams, illustrations, photos, numbered instructions, troubleshooting guides
Benefit:
Saves time and money on repairs and maintenance
Diagnostic Tools:
Provides comprehensive diagnostic information used by professionals
General Information:
True
Engine Lubrication System:
True
Engine Removal Installation:
True
Crankshaft Transmission:
True
Estimated Page Count:
Hundreds of pages
Type:
Workshop Repair Service Manual
Delivery Method:
Instant Download
Digital Advantage:
Electronic format allows for printing specific sections, protecting the original manual from dirt/oil.
Engine:
Complete overhaul, top end, lubrication, removal/installation, crankshaft, transmission
Fuel System:
Carburetor operation, adjustment, and overhaul
Cooling System:
Air cooling system components and maintenance
Drivetrain:
Clutch, transmission, final drive (chain drive maintenance)
Chassis:
Wheels, tires, brakes, suspension, steering, frame
Electrical:
Wiring diagrams, ignition system, lighting, charging system, troubleshooting
Maintenance:
Routine service, lubrication, adjustments, inspections
Repair:
Step-by-step repair procedures for all covered systems
Troubleshooting:
Diagnostic procedures for common problems, electrical troubleshooting
Disassembly Assembly:
Detailed procedures for component removal and reinstallation
Cleaning Reinstalling:
Procedures for cleaning and reassembling components
Electrical Diagnostics:
Detailed diagnosis and repair of electrical system problems
Depth:
Professional-level diagnostics, repair, and maintenance
Data Quality:
Original manufacturer data, used by local service/repair shops
Diagrams Illustrations:
Hundreds of pages of diagrams and detailed information
Wiring Diagrams:
Comprehensive wiring diagrams included
Engine Type:
4-stroke, single-cylinder, SOHC, 2-valve
Displacement:
249 cc (approximately, specific bore/stroke required from manual)
Horsepower:
Approx. 18-20 HP (exact figures vary by year and market, refer to manual for specifics)
Torque:
Refer to manual for specific torque figures
Carburetor Type:
Likely a single Mikuni VM carburetor (specific model number in manual)
Fuel Delivery:
Carburetor
Oil Change Interval:
Refer to manual for specific intervals and oil type (typically 3,000-5,000 km or annually)
Spark Plug Replacement:
Refer to manual for specific intervals and plug type (e.g., NGK DPR8EA-9)
Chain Maintenance:
Regular cleaning, lubrication, and adjustment required (refer to manual for specifications)
Engine Oil Type:
API SE, SF or SG, SAE 10W-40 or 20W-40 recommended (verify exact specification in manual)
Engine Oil Capacity:
Refer to manual for exact capacity (typically around 1.4 - 1.8 liters with filter change)
Brake Fluid Type:
DOT 3 or DOT 4 (verify with manual)
Common Wear Items:
Carburetor jets, clutch plates, brake pads/shoes, fork seals, wheel bearings
Electrical Quirks:
Age-related deterioration of wiring insulation and connectors can occur.
Manufacturer Heritage:
Yamaha Motor Company is renowned for its motorcycles, musical instruments, and other motorized products.
Sr250 Heritage:
The SR250 series is a line of versatile, lightweight motorcycles known for their simplicity and reliability. The SR250G represents a specific iteration within this successful model family.
Production Period:
1980-1983 (for the specific SR250G variant covered by this manual)