🏷️ Basic Information Identification Make: Yamaha Model Line: ATC Tri-Moto Specific Models: • YTM 225 DRS • YTM 225 DRN • YTM 225 DXK Production Years: 1983, 1984, 1985, 1986, 1987 Codes Atv Type: All-Terrain Vehicle (ATV) 👋 Introduction Market Position Target Audience: Yamaha YTM 225 owners, DIY mechanics, repair shops Competitive Analysis Key Differentiators: Improved PDF features (bookmarks, search), full factory content, broad OS compatibility, direct download without compression Key Features Value Proposition: Comprehensive, easy-to-use, authoritative repair information for Yamaha YTM 225 models, backed by a satisfaction guarantee. 📋 Manual Details Coverage Areas Manual Title: Yamaha YTM 225 DRS/DRN/DXK Repair Manual [Improved] PDF Download Manual Type: Factory Repair Manual Manual Scope: Complete service, repair, and overhaul instructions Page Count Page Count Estimate: Hundreds of pages Language Language: English Format File Format: PDF Digital Features: • Searchable Text • Bookmarks • Sub-bookmarks Compatibility: • Windows • Mac • Linux Delivery Method: Instant Download Usability Ease Of Use: Easy to navigate, no digging through hundreds of pages, not a zip file 📖 Manual Coverage Systems Covered General Information: Included Specifications: Included Periodic Checks Adjustments: Included Periodic Maintenance Tune Up: Included Chassis: Included Engine: Included Suspension: Included Steering Frame: Included Cooling System: Included Fuel Injection System: Included Controls Indicators: Included Electrical System: Included Wiring Diagrams: Included Troubleshooting: Included Procedures Included Disassembly Assembly: Complete step-by-step instructions Engine Overhaul: Detailed procedures for engine rebuild Routine Maintenance: Tune-ups, adjustments, and checks Component Repair: Instructions for all major components Technical Depth Depth Level: Factory-level detail, suitable for professional mechanics 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Print Quality Printability: Printable pages as needed Binding Type Binding: Not applicable (Digital PDF download) Paper Type Paper Type: Not applicable (Digital PDF download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC Displacement: 223cc (Verify specific model for exact figure, but commonly associated with this engine family) Performance Bore X Stroke: Typically around 66.0 mm x 65.0 mm for 223cc engines (Manual will provide exact) Compression Ratio: Estimated 9.5:1 to 10.5:1 (Manual will provide exact) Fuel System Fuel Delivery: Carburetor (Specific model/year may have different configurations, manual covers 'Fuel Injection System' which might be a slight misnomer or refer to ignition system details) Fuel Type: Unleaded gasoline (Manual will specify octane rating) Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamalube or equivalent motorcycle/ATV oil (API SG or higher, SAE 10W-30 recommended, manual will confirm) Oil Capacity: Approx. 1.7-1.9 liters (Manual will confirm exact capacity) 🔧 Transmission Standard Transmission Type: 5-speed manual transmission with automatic clutch (or shaft drive with specific transmission setup, YTM models are often shaft drive) Optional Optional Features: Reverse gear Features Drive Type: Shaft Drive (Common for this era and model) 📐 Dimensions Exterior Length Overall: Varies by model, typically around 1900-2000 mm (Manual will provide exact figures) Width Overall: Varies by model, typically around 700-800 mm (Manual will provide exact figures) Height Overall: Varies by model, typically around 1000-1100 mm (Manual will provide exact figures) Weights Dry Weight: Approximately 150-170 kg (Manual will confirm specific model dry weight) Fuel Capacity: Approx. 9-11 liters (Manual will specify exact fuel tank capacity) 🛡️ Safety Features Ratings Safety Standards: Designed to meet applicable ATV safety regulations of its era. Manual details any specific certifications. Active Features Braking System: Hydraulic disc brakes front and rear (Manual details specific caliper, rotor, and fluid type - DOT 3/4 recommended) Passive Features Lighting System: Headlight, taillight, brake light (Manual covers bulb types and electrical troubleshooting) 💡 Technology Features Infotainment Display Features: Basic indicator lights (neutral, oil pressure, high beam). No advanced infotainment. Driver Assistance Assistance Features: None (This era of ATV did not feature electronic driver assistance systems). Connectivity Connectivity Options: None. 🔧 Maintenance Service Intervals Oil Change Interval: Every 1000 km or 6 months, whichever comes first (Manual will provide precise schedule) Spark Plug Replacement: Every 2000 km or annually (Manual will specify exact interval and plug type, e.g., NGK CR9E) Air Filter Cleaning: Every 500 km or as needed based on operating conditions (Manual will detail cleaning and oiling procedure) Valve Clearance Adjustment: Every 4000 km or 2 years (Manual will provide correct clearances and procedure) Fluid Specifications Brake Fluid: DOT 3 or DOT 4 brake fluid (Manual will specify) Gear Oil: Yamalube or equivalent GL-4 gear oil, SAE 80 (Manual will specify type and capacity) Known Issues Common Wear Points: Carburetor performance degradation, suspension bushing wear, electrical connector corrosion, drive shaft U-joints, starter motor issues. Troubleshooting Guidance: Manual provides specific diagnostic steps for common and uncommon problems. 📚 Vehicle History Brand Heritage Yamaha Atv Legacy: Yamaha has a long-standing history of innovation in the ATV market, beginning with the iconic 3-wheelers. Model Evolution Ytm Series: The YTM series represented Yamaha's transition and development in the burgeoning ATV market, building on...