This manual provides comprehensive service and repair information for the Moto 4 (YFM200) models produced between 1985 and 1989. Engineered for recreational and utility use, the Moto 4 line represents a commitment to durable and capable all-terrain vehicles. With its air-cooled, 4-stroke engine and reliable drivetrain, the YFM200 is recognized for its solid performance in its class. This documentation is essential for understanding the intricacies of this classic ATV. The purpose of this factory service repair workshop manual is to guide owners and technicians through all aspects of maintenance, troubleshooting, and repair. It covers detailed procedures for the engine, transmission, electrical system, fuel system, brakes, suspension, and more, supported by hundreds of illustrations and diagrams. This comprehensive English-language resource is designed to ensure the longevity and optimal performance of your Moto 4, offering factory-level documentation for all service needs. 🏷️ Basic Information Identification Make: Yamaha Model: Moto 4 Model Code: YFM200 Year Range Covered: 1985-1989 👋 Introduction Market Position Target User: Yamaha Moto 4 YFM200 owners and technicians performing service and repairs Competitive Analysis Manual Type Advantage: Factory-level, comprehensive documentation for all service needs Key Features Visual Guidance: Detailed photos and diagrams enhance understanding of procedures Comprehensive Coverage: Covers all aspects of repair, maintenance, and troubleshooting No Additional Fees: One-time purchase for lifetime access and use 📋 Manual Details Coverage Areas Primary Coverage: Service, Repair, Workshop Secondary Coverage: Troubleshooting, Maintenance, Servicing Page Count Estimated Page Count: Hundreds (specific number not provided, but described as 'very detailed') Manual Type Type: Factory Service Repair Workshop Manual Language Language: English Format Format: Downloadable PDF Usage Rights Lifetime Use: Yes Multiple Devices: Yes Printing Rights: Yes (single page or entire manual) Version Type Version: Full, Unlimited Compatibility Operating Systems: Windows & MAC 📖 Manual Coverage Systems Covered Engine: Detailed coverage of engine repair, overhaul, and tuning Transmission: Information on transmission servicing, repair, and troubleshooting Electrical System: Wiring diagrams, component testing, and electrical system diagnostics Fuel System: Carburetor service, fuel pump, and fuel lines Cooling System: Radiator, fan, and coolant flow diagnostics Suspension: Front and rear suspension component inspection, repair, and adjustment Brakes: Brake system inspection, servicing, and component replacement Steering: Steering mechanism inspection and repair Bodywork: Body panel removal, installation, and cosmetic repairs Frame: Frame inspection and integrity checks Procedures Included Maintenance: Regular scheduled maintenance tasks and intervals Troubleshooting: Systematic diagnostic procedures for common and uncommon faults Repair: Step-by-step repair instructions for all major components Disassembly Assembly: Detailed procedures for taking components apart and reassembling them Inspection: Visual and functional inspection guidelines for wear and tear Adjustment: Procedures for adjusting various systems (e.g., carburetor, brakes) Part Replacement: Instructions for replacing specific parts Technical Depth Depth: Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts Diagnostic Tools: Information on diagnostic procedures and potential tool requirements Illustrations: Hundreds of detailed photos and diagrams, including exploded views 📊 Manual Specifications File Format Format: PDF (Portable Document Format) Searchability: Likely searchable text within the PDF (standard for professional manuals) Print Quality Print Capability: High (suitable for printing) Binding Type Binding: Not applicable (digital download) Paper Type Paper Type: Not applicable (digital download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC Displacement: 196 cc (cc) Bore X Stroke: 65.0 mm x 54.4 mm (estimated, specific to YFM200) Compression Ratio: 9.5:1 (estimated, specific to YFM200) Performance Horsepower: Approximately 15 HP (estimated, varies by year/tune) Torque: Approximately 11 lb-ft (estimated, varies by year/tune) Fuel System Carburetor: Mikuni VM26SS (typical for this model, manual would detail specific settings) Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamaha Yamalube 4 (or equivalent SAE 20W-40 API SE, SF engine oil) Oil Capacity: 1.2 L (1.3 US qt, 1.1 Imp qt) (estimated, check manual for exact) Cooling System Cooling Method: Air-cooled 🔧 Transmission Standard Type: 5-speed manual with automatic clutch (or semi-automatic) Drive System Final Drive: O-ring sealed chain Fluid Type Transmission Oil: Yamalube 4 (or equivalent SAE 20W-40 API SE, SF transmission oil) 📐 Dimensions Exterior Length: Approx. 1835 mm (72.2 in) Width: Approx. 785 mm (30.9 in) Height: Approx. 1050 mm (41.3 in) Weights Dry Weight: Approx. 157 kg (346 lbs) Wet Weight: Approx. 165 kg (364 lbs) (with fluids) Tires Front Tire: AT21x7-10 (or similar, check manual for exact spec) Rear Tire: AT22x10-10 (or similar, check manual for exact spec) Wheels Wheel Type: Steel Bolt Pattern: 4 x 110 mm (typical for this era ATV) 🛡️ Safety Features Ratings Crash Test Results: Not applicable (ATV, not road vehicle) Active Features Brakes Operation: Hydraulic front disc, mechanical rear drum (typical, verify in manual) Passive Features Lighting: Headlight, taillight, brake light 💡 Technology Features Infotainment Infotainment System: Not applicable (basic recreational ATV) Driver Assistance Driver Assistance Features: Not applicable (basic recreational ATV) Connectivity Connectivity Features: Not applicable (basic recreational ATV) 🔧 Maintenance Service Intervals Oil Change Interval: Refer to...