🏷️ Basic Information Identification Make: Yamaha Model: YFM200 Moto-4 / YTM200 Tri-Moto / YTM225DX Tri-Moto Product Name: Yamaha YFM200 Moto-4 200 1983-1986 Service Manual PDF Download Codes Chassis Code Prefix: YTM200, YTM225, YFM200 Generation Model Generation: First Generation 👋 Introduction Market Position Target Audience: DIY enthusiasts, independent repair shops, Yamaha owners seeking to maintain or restore their vintage ATVs. Competitive Analysis Value Proposition: Offers a complete and detailed resource for servicing a range of Yamaha's early popular ATVs, often difficult to find in physical format. Key Features Diagrams Quality: High-quality, clear diagrams and illustrations crucial for accurate repair. Completeness: Considered one of the most comprehensive compilations for these specific models. Accessibility: Instant PDF download provides immediate access to vital service information. 📋 Manual Details Coverage Areas Covered Models: 1983 Yamaha YTM200EK Tri-Moto, 1983 Yamaha YTM225DXK Tri-Moto, 1984 Yamaha YTM200L Tri-Moto, 1984 Yamaha YTM225DXL Tri-Moto, 1985 Yamaha YFM200N-S Moto-4, 1985 Yamaha YTM200N Tri-Moto, 1985 Yamaha YTM225DXN Tri-Moto, 1986 Yamaha YFM200DXS Moto-4 Page Count Estimated Page Count: 300+ Manual Type Manual Type: Service and Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Engine disassembly, inspection, assembly, tuning, lubrication, cooling system Fuel System: Carburetor service and adjustment, fuel pump, fuel lines Transmission: Clutch service, gearbox inspection and repair, drive shaft, final drive Electrical System: Ignition system, lighting, starter motor, battery, charging system, wiring diagrams Brakes: Drum brake service, hydraulic system (if applicable), brake fluid specifications Suspension: Front forks, rear shock absorber, linkage maintenance Steering: Steering mechanism, tie rods, wheel alignment Frame And Bodywork: Chassis inspection, body panel removal and installation, seats Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, lubrication points Troubleshooting: Diagnostic flowcharts, common problems and their solutions Repair: Step-by-step repair instructions for all major components Disassembly Assembly: Detailed procedures for complete teardown and reassembly of systems Technical Depth Depth: Comprehensive: Covers basic maintenance to complete engine and transmission overhauls, electrical diagnostics, and chassis repairs. 📊 Manual Specifications File Format File Type: Digital PDF Searchability: Searchable text enabled Print Quality Image Resolution: High resolution for clarity Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, Air-cooled, SOHC Displacement Yfm200: 196cc Displacement Ytm225: 223cc Bore X Stroke Yfm200: 66 mm x 57 mm Bore X Stroke Ytm225: 68.5 mm x 62 mm Compression Ratio Yfm200: 9.2:1 Compression Ratio Ytm225: 9.1:1 Performance Estimated Horsepower Yfm200: 13-15 HP (approximate, varies by tuning and year) Estimated Horsepower Ytm225: 16-18 HP (approximate, varies by tuning and year) Fuel System Carburetor Model: Mikuni VM Series (e.g., VM26 for YFM200, VM28 for YTM225) Fuel Type: Unleaded gasoline Fuel Tank Capacity: Varies by model, typically 2.5-3.0 Gallons 🔧 Transmission Standard Transmission Type Yfm200: 5-speed manual with Automatic Clutch Transmission Type Ytm225: 6-speed manual with Automatic Clutch Optional Reverse Gear: Standard on most models Features Drive System: Shaft drive (2WD) Clutch Type: Wet multi-plate automatic clutch Final Drive Oil Type: Yamalube Gear Oil or equivalent SAE 80W API GL-4 📐 Dimensions Exterior Length: Varies by model, approximately 70-75 inches Width: Varies by model, approximately 40-45 inches Height: Varies by model, approximately 40-43 inches Weights Dry Weight Yfm200: Approx. 350-370 lbs Dry Weight Ytm225: Approx. 390-410 lbs Ground Clearance: Varies by model, typically 4-6 inches 🛡️ Safety Features Ratings Atv Safety Considerations: As an early ATV, it lacks modern safety features. Emphasizes the importance of riding gear (helmet, eye protection, boots, gloves, long sleeves/pants) and proper training. Active Features Braking System: Drum brakes, typically front and rear. Rear brake often foot-actuated, front brakes often hand-actuated. Passive Features Lighting: Headlight, taillight/brake light. Manual covers electrical system for proper function. 💡 Technology Features Infotainment Features: Basic instrumentation: speedometer, odometer, neutral indicator, high-beam indicator. No advanced infotainment systems. Driver Assistance Features: None (basic mechanical systems). Connectivity Features: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Every 1,000 km or annually (refer to manual for specific usage recommendations) Air Filter Cleaning: Every 500 km or more frequently in dusty conditions Spark Plug Check: Every 1,000 km Valve Clearance Check: Every 2,000 km Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent) SAE 10W-30 API SE, SF, or SG classification Engine Oil Capacity: Approx. 1.7 Liters (1.8 US qt) with filter change Brake Fluid Type: DOT 3 or DOT 4 Known Issues Carburetor Issues: Common for older carburetors to become gummed up, requiring cleaning and re-jetting. Pilot circuits are prone to clogging. Clutch Wear: Automatic clutch components can wear over time, affecting engagement and performance. Manual details adjustment and replacement. Electrical Gremlins: Aging wiring harnesses and connectors can lead to intermittent electrical issues. Comprehensive wiring diagrams in the manual are essential. Carburetor Float Height: Improper float height can cause rich or lean running conditions. Manual specifies correct adjustment. Suspension Leaks: Seals in front forks and rear shocks...