This manual covers the YTM 225 Tri-Moto, including its DRS, DRN, and DXK sub-models, produced between 1983 and 1987. The YTM 225 series was a significant offering in the three-wheeled ATV market, known for its robust four-stroke, air-cooled engine and reliable shaft drive. This versatile machine was engineered for recreational use and utility, embodying a reputation for quality powersports vehicles. Its development marked an entry into the growing ATV segment, providing a capable platform that has earned a reputation for dependability and performance in off-road applications. This comprehensive Service Repair Workshop Manual provides detailed, factory-level information essential for the maintenance and repair of your YTM 225 Tri-Moto. It covers all major systems, including engine overhaul, transmission, chassis, brakes, electrical components, and fuel system, along with routine maintenance procedures and troubleshooting guides. Step-by-step instructions, hundreds of pages of detailed content, and highly detailed exploded diagrams are included to assist owners, DIY enthusiasts, and professional mechanics in ensuring the longevity and optimal performance of their vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: YTM 225 Tri-Moto Sub Models: DRS, DRN, DXK Model Years Covered: 1983, 1984, 1985, 1986, 1987 👋 Introduction Market Position Target Audience: Yamaha YTM 225 Tri-Moto owners, DIY enthusiasts, professional mechanics Competitive Analysis Value Proposition: Provides comprehensive factory-level repair and maintenance information for the Yamaha YTM 225 series Tri-Moto, ensuring longevity and optimal performance. Key Features Key Selling Points: Full factory coverage, instant download, lifetime access, detailed visuals, cross-platform compatibility. 📋 Manual Details Coverage Areas Manual Type: Service Repair Workshop Manual Language: English Format: PDF Download Availability: Instant Download Licensing: Unlimited Use, No Expiry Device Compatibility: Computers (Windows & MAC), Tablets, Smartphones 📖 Manual Coverage Systems Covered Engine: Complete overhaul, tuning, carburetor, ignition, cooling system Transmission: Clutch, gearbox, drivetrain, final drive Chassis: Frame, suspension (front and rear), steering system Brakes: Hydraulic system, brake caliper, brake pads, master cylinder Electrical: Wiring diagrams, lighting system, battery, starting system, charging system Fuel System: Fuel tank, fuel lines, fuel pump, carburetor adjustment Bodywork: Fenders, seat, handlebars, control levers, body panels Procedures Included Routine Maintenance: Oil changes, filter replacements, chain adjustment, spark plug inspection Troubleshooting: Diagnostic procedures for common and complex issues Repair: Step-by-step instructions for component replacement and repair Rebuilding: Complete engine and transmission rebuild procedures Adjustments: Carburetor, clutch, brake, and suspension adjustments Technical Depth Depth: Comprehensive; from basic maintenance to complete engine rebuilds and advanced diagnostics Detail Level: Hundreds of pages with detailed photos & diagrams Diagrams: Highly detailed exploded diagrams Instructions: Step-by-step instructions for all procedures 📊 Manual Specifications File Format File Type: PDF Searchable: Yes (implied by digital format) Print Quality Printability: Single page or entire manual Binding Type Binding: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, air-cooled, SOHC Displacement: 223cc (for most variants) Bore X Stroke: Specific to model variant, refer to manual for precise details Compression Ratio: Specific to model variant, refer to manual for precise details Performance Horsepower: Typically in the 15-20 HP range, specific to model variant Torque: Specific to model variant, refer to manual for precise details Fuel System Carburetor Type: Single Mikuni (model specific, e.g., VM32SS) Fuel Type: Unleaded gasoline 🔧 Transmission Standard Transmission Type: 5-speed manual with reverse Clutch Type: Wet, multi-plate Features Drivetrain: Shaft drive to rear axle 📐 Dimensions Exterior Length: Approx. 1930 mm (76 in) for DXK, refer to manual for specific variants Width: Approx. 1120 mm (44.1 in) for DXK, refer to manual for specific variants Height: Approx. 1030 mm (40.6 in) for DXK, refer to manual for specific variants Weights Dry Weight: Approx. 180 kg (397 lbs) for DXK, refer to manual for specific variants Payload Capacity: Refer to manual for specific load ratings 🛡️ Safety Features Ratings Safety Features: Front and rear drum brakes (some models may have front disc brake options), integrated lighting system. Active Features Braking System: Hydraulically operated drum brakes (front and rear) or front disc and rear drum on some models. Passive Features Lighting: Headlight, taillight, brake light for visibility and signaling. 💡 Technology Features Infotainment Infotainment System: N/A (Basic mechanical vehicle). Driver Assistance Driver Assistance Features: N/A (Basic mechanical vehicle). Connectivity Connectivity Options: N/A (Basic mechanical vehicle). 🔧 Maintenance Service Intervals Engine Oil Change: Every 1000 km or 6 months, whichever comes first (refer to manual for precise mileage/time). Air Filter Cleaning: Check and clean every 500 km or as needed in dusty conditions. Spark Plug Inspection: Inspect every 1000 km, replace as needed. Chain Lubrication Adjustment: Lubricate every 500 km, check tension every 1000 km. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent API SE, SF, SG, SAE 10W-40 or 20W-40). Engine Oil Capacity: Approx. 1.6 L (1.7 US qt) with filter change (refer to manual for precise capacity). Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake...