Target Audience:
Do-it-yourselfers and experienced mechanics
Manual Value Proposition:
Inexpensive way to keep your vehicle working properly, guides through service and repair procedures with detailed illustrations.
Completeness Guarantee:
100% Complete and Intact, no missing/corrupt pages/sections
Illustrations Diagrams:
Hundreds of photos, illustrations, exploded diagrams, and wiring schematics
Market Segment:
Youth/entry-level recreational ATVs, competing with models from Yamaha (e.g., Raptor 90), Suzuki (e.g., LT-Z50/90), and Polaris (e.g., Outlaw 50/90).
Covered Models:
Kymco Mongoose 90, Kymco KXR 90, Kymco Mongoose 50, Kymco KXR 50
Coverage Scope:
Complete Service and Repair
Estimated Page Count:
Not specified, but described as 'COMPLETE'
Manual Type:
Official Service Repair Manual
Engine Systems:
General Information, Lubrication System, Fuel System, Engine Removal, Cylinder Head/Valves, Cylinder/Piston, Drive/Driven Pulleys, Final Reduction/Transmission, Crankcase/Crankshaft
Chassis Systems:
Frame Covers/Exhaust Muffler, Front Wheel/Front Brake/Front Suspension/Steering System, Rear Wheel/Swing Arm/Hydraulic Brake
Electrical Systems:
Battery/Charging System/A.C. Generator, Ignition System, Starting System, Bulbs Removal/Instrument/Horn
Exhaust System:
Frame Covers / Exhaust Muffler section covers exhaust system components.
Suspension System:
Front Suspension and Rear Swing Arm coverage.
Steering System:
Steering System coverage.
Lighting System:
Bulbs Removal section covers headlight, taillight, and indicator bulbs.
Repair Procedures:
Complete tear down and rebuild, diagnostic and repair procedures, troubleshooting
Maintenance Procedures:
Inspection, Adjustment, Lubrication
Wiring Schematics:
Detailed wiring schematics are provided for the electrical system.
Rebuild Procedures:
Step-by-step instructions based on complete disassembly of the machine for rebuilds.
Troubleshooting Guides:
Dedicated troubleshooting section to diagnose and resolve issues.
Technical Depth:
Comprehensive: From basic maintenance and inspection to full engine and chassis rebuilds.
Torqu Specifications:
Detailed torque specifications are included for engine and chassis fasteners.
Engine Type 50:
Air-cooled, 4-stroke (assumed based on typical Kymco 50cc ATVs)
Displacement 50:
Approximately 49cc (typical for this class, specific value in manual)
Engine Type 90:
Air-cooled, 4-stroke (assumed based on typical Kymco 90cc ATVs)
Displacement 90:
Approximately 89cc (typical for this class, specific value in manual)
Performance Description:
Details for complete rebuilds, including torque specifications for engine components.
Fuel System Coverage:
Carburetor (likely), fuel pump (if applicable), fuel lines, filters, and tank.
Carburetor Details:
Detailed specifications, adjustment procedures, and potential part numbers for the carburetor.
Maintenance Schedule Coverage:
Includes 'Inspection / Adjustment' and 'Lubrication System' sections, implying scheduled maintenance procedures.
Lubrication System Details:
Specific oil types, viscosities, and capacities for engine and transmission/final drive are expected to be detailed.
Brake Fluid Type:
Likely DOT 3 or DOT 4 hydraulic brake fluid (standard for most hydraulic systems).
Coolant Type:
Not applicable (vehicles are air-cooled).
Engine Oil Type:
Likely a 4-stroke motorcycle or ATV specific oil, e.g., SAE 10W-40 or 10W-30, API SG or higher (specifics in manual).
Gear Oil Type:
For the final reduction/transmission, likely a gear oil or transmission fluid (specifics in manual).
Common Problems Coverage:
Troubleshooting section is comprehensive, covering common issues, wear items, and diagnostic procedures.
Typical Wear Items:
Brake pads/shoes, tires, drive belt (CVT), spark plugs, air filter, and lubricants are common maintenance items.
Manufacturer Heritage:
Kymco (Kwang Yang Motor Co., Ltd.) is a Taiwanese company established in 1963, known for its range of scooters, motorcycles, and ATVs.
Model Lineage:
The Mongoose and KXR series represent Kymco's entry-level to mid-range youth and recreational ATVs, typically updated with minor changes in styling or engine tuning over production years.
