This manual covers the MOTO 4, available in 200 and 225cc variants, produced between 1985 and 1989. These ATVs are recognized for their utility, durability, and balance of performance, making them suitable for recreational and farm use. The legacy in powersports is built on producing reliable vehicles, and the MOTO 4 line reflects this commitment, offering a practical and capable off-road experience for its era. This comprehensive service repair workshop manual provides detailed information for owners and technicians. It covers essential maintenance procedures, troubleshooting guidance, and technical specifications for all major systems, including the engine, transmission, drivetrain, chassis, suspension, brakes, electrical, and fuel systems. With step-by-step instructions and diagnostic flowcharts, this manual aims to empower users to perform both routine upkeep and complex repairs, ensuring the longevity and optimal performance of their MOTO 4. 🏷️ Basic Information Identification Make: Yamaha Model: MOTO 4 Model Variant: 200 / 225 Production Years Covered: 1985-1989 Codes Engine Code: Likely based on the XT225/TW200 engine families 👋 Introduction Market Position Target Audience: Owners and independent repair shops seeking to maintain and repair their Yamaha MOTO 4 ATVs. Competitive Analysis Value Proposition: Provides factory-level repair information, enabling DIY repairs and reducing reliance on expensive dealership service. Key Features Accessibility: Instant PDF download for immediate access to repair information. Instructional Detail: Step-by-step instructions paired with detailed exploded views and diagrams. 📋 Manual Details Coverage Areas Systems Covered: Engine, Transmission, Drivetrain, Chassis, Suspension, Brakes, Electrical System, Fuel System, Ignition System, Cooling System, Lubrication System, Bodywork, Controls, Troubleshooting, Maintenance, Specifications. Page Count Estimated Page Count: Approximately 200-300 pages (typical for this era and vehicle type) Manual Type Manual Type: Service Repair Workshop Manual Language Language: English Format Digital Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Disassembly, inspection, repair, and reassembly of engine components including cylinder, piston, rings, crankshaft, connecting rod, camshaft, valves, timing system. Fuel System: Carburetor adjustment, cleaning, and repair; fuel tank, fuel lines, fuel filter maintenance. Ignition System: CDI unit, ignition coil, spark plug testing and replacement, stator and pickup coil inspection. Transmission Drivetrain: Gearbox inspection and repair, clutch operation and adjustment, drive chain maintenance and adjustment, differential (if applicable). Suspension Steering: Front fork disassembly, service, and adjustment; rear shock absorber service; steering system inspection and adjustment. Braking System: Brake pad replacement, caliper inspection and service, brake fluid replacement, brake cable adjustment, drum brake maintenance (if equipped). Electrical System: Wiring diagrams, lighting system, battery maintenance, starter motor, charging system (generator/alternator), fuses, switches. Chassis Bodywork: Frame inspection, body panel removal and installation, seat, fenders, handlebars, footpegs. Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug replacement, air filter cleaning/replacement, chain lubrication and adjustment, brake adjustments, general inspection. Troubleshooting: Diagnostic flowcharts and common problem identification for engine, electrical, and mechanical issues. Component Rebuild: Detailed instructions for engine top-end rebuild, carburetor overhaul, and brake caliper servicing. Adjustments: Valve clearance adjustment, carburetor idle speed and mixture adjustment, clutch and throttle cable adjustments. Technical Depth Depth Of Information: Comprehensive, covering everything from basic owner maintenance to full mechanical overhauls, including diagnostic procedures and specifications. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, suitable for clear printing of diagrams and text. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, Air-cooled, SOHC Displacement 200: Approximately 195cc (for MOTO 4 200) Displacement 225: Approximately 223cc (for MOTO 4 225, likely derived from XT225 engine) Performance Bore X Stroke Typical: Variable depending on specific model variant (e.g., 66.0 mm x 57.0 mm for 225cc class) Fuel System Carburetor Type: Mikuni VM Series or similar constant velocity carburetor Fuel Grade: Unleaded gasoline, typically 87 octane or higher 🔧 Transmission Standard Transmission Type: 5-speed constant mesh with automatic clutch Optional Transmission Options: N/A (typically single configuration) Features Drive Type: Shaft drive or Chain drive (depending on specific MOTO 4 model) 📐 Dimensions Exterior Overall Length: Refer to specific model data; typical for mid-size ATVs of the era. Weights Dry Weight: Approximately 180-200 kg (specific model dependent) 🛡️ Safety Features Ratings Safety Standards: Adheres to relevant ATV safety standards of the period. 💡 Technology Features Infotainment Infotainment System: N/A (Basic utilitarian vehicle design) Driver Assistance Driver Assistance Features: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Every 1,000 km or 3 months, whichever comes first (typical recommendation) Air Filter Cleaning: Every 500 km or as needed based on operating conditions Spark Plug Replacement: Every 6,000 km or as needed Valve Clearance Check: Every 10,000 km or 1 year Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent SAE 10W-30 API SE, SF or SG) Engine Oil Capacity: Approximately 1.5 - 1.8 Liters (including filter, refer to manual for exact capacity) Brake Fluid Type: DOT 3 or DOT 4 brake fluid Known Issues Common Wear Item: Carburetor...