🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 Model Variants Covered: YFM350FXN, YFM350FXP, YFM350FXR, YFM35FXS, YFM35FXT, YFM35FXH, YFM35FXG, YFM350FXM(C), YFM350FXLC Model Years Covered: 2001, 2002, 2003, 2004, 2005 Codes Chassis Codes: YFM350FX series 👋 Introduction Market Position Market Position: Essential technical resource for owners and technicians of the Yamaha Wolverine 350 4WD ATV, providing factory-level repair and maintenance information. Competitive Analysis Competitive Analysis: This factory service manual offers the definitive and most accurate repair information compared to generic repair guides, ensuring correct procedures and specifications are followed. Key Features Key Features: Instant download, comprehensive coverage, step-by-step procedures, detailed diagrams and illustrations, troubleshooting guidance, digital format accessible on multiple devices. 📋 Manual Details Coverage Areas Coverage Areas: Complete vehicle Page Count Page Count: Not specified, but implied to be comprehensive for a factory service manual. Manual Type Manual Type: Factory Service Manual / Repair Manual Language Language: English Format Format: Digital Downloadable (PDF) 📖 Manual Coverage Systems Covered Systems Covered: General Information, Maintenance, Fuel System, Cooling System, Engine, Transmission, Clutching, Final Drive, Body and Frame, Steering and Suspension, Brakes, Electrical System, Wiring Diagrams Procedures Included Procedures Included: Maintenance, service, repair, removal and installation of components, troubleshooting Technical Depth Technical Depth: Comprehensive, step-by-step repair procedures with illustrations, diagrams, exploded parts views, service information, and troubleshooting guides. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: Identical to a printed repair book, implies high-resolution illustrations and text for clarity. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: Air-cooled, 4-stroke, SOHC, parallel-twin Displacement: 348cc Bore X Stroke: 68.5 mm x 96 mm Compression Ratio: 9.2:1 Performance Horsepower: Approximately 20-22 HP (actual figures may vary by specific model year and tuning) Torque: Approximately 19-21 lb-ft (actual figures may vary) Fuel System Carburetor: Mikuni BSR33 (single) Fuel Type: Unleaded gasoline Fuel Tank Capacity: 3.2 US gal (12 L) Lubrication Oil Type: Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher Oil Capacity: 1.8 US qt (1.7 L) without filter change, 2.0 US qt (1.9 L) with filter change Ignition Ignition System: T.C.I. (Transistor Controlled Ignition) Cooling System Cooling Method: Air-cooled 🔧 Transmission Standard Transmission Type: 5-speed constant mesh with automatic clutch and reverse Features Clutch Type: Wet, centrifugal, automatic Final Drive Type: Shaft drive with sealed O-ring chain final drive Transmission Fluid Type: Yamaha Gear Oil 10W-30 (or equivalent) Transmission Fluid Capacity: 0.13 US qt (0.12 L) 📐 Dimensions Exterior Length: 75.0 in (1905 mm) Width: 41.7 in (1059 mm) Height: 43.1 in (1095 mm) Wheelbase: 49.2 in (1250 mm) Ground Clearance: 6.1 in (155 mm) Weights Dry Weight: 525 lbs (238 kg) Wet Weight: Approximately 553 lbs (251 kg) 🛡️ Safety Features Ratings Safety Ratings: N/A (ATV, not subject to automotive crash test ratings) Active Features Active Features: Disc brakes front and rear, handlebar throttle lever, neutral indicator light, high beam indicator light. Passive Features Passive Features: Full floorboards for foot protection, integrated grab bar, comfortable seating position. 💡 Technology Features Infotainment Infotainment System: N/A (Basic ATV design focuses on functionality and off-road performance, not typically equipped with infotainment systems.) Driver Assistance Driver Assistance: N/A (No advanced driver assistance systems typically found on ATVs.) Connectivity Connectivity: N/A 🔧 Maintenance Service Intervals Engine Oil Change Interval: Every 1,000 km (600 miles) or 6 months, whichever comes first. Air Filter Cleaning Interval: Every 200 km (125 miles) or 1 month in dusty conditions, every 1,000 km (600 miles) or 6 months otherwise. Spark Plug Replacement Interval: Every 3,000 km (1,800 miles) or 1 year. Fluid Specifications Engine Oil Grade: SAE 10W-40 API SG or higher Engine Oil Capacity: 1.8 US qt (1.7 L) without filter, 2.0 US qt (1.9 L) with filter Transmission Fluid Grade: Yamaha Gear Oil 10W-30 or equivalent Transmission Fluid Capacity: 0.13 US qt (0.12 L) Brake Fluid Type: DOT 3 or DOT 4 Known Issues Known Issues: Potential for carburetor issues (gumming, sticking jets) if fuel is not drained during long-term storage, some reports of starter motor reliability, normal wear and tear on suspension components and drive shafts due to off-road use. Technical Specifications Valve Lash Clearance Intake: 0.08-0.12 mm (0.003-0.005 in) Valve Lash Clearance Exhaust: 0.08-0.12 mm (0.003-0.005 in) Idle Speed: 1400 ± 50 rpm Tire Pressure Front: 5 psi (35 kPa) Tire Pressure Rear: 5 psi (35 kPa) 📚 Vehicle History Brand Heritage Brand Heritage: Yamaha Motor Corporation is a Japanese manufacturer renowned for its diverse range of products including motorcycles, marine products, and powersports vehicles, known for reliability and performance. Model Evolution Model Evolution: The Wolverine 350 line represented Yamaha's offering in the mid-size utility ATV segment, evolving from earlier models with a focus on 4WD capability and ease of use for trail riding and light work. Production Production Years: Generally produced...