This manual covers the All-Terrain Vehicle (ATV), model code YFM350FX, produced between 2003 and 2009. Known for its shaft drive, comfortable suspension, and reliable air-cooled engine, the 350 is a capable mid-size utility ATV popular for recreational trail riding and general off-road use. The heritage in powersports is evident in the 350's proven durability and user-friendly design, making it a dependable choice for various off-road adventures. This comprehensive workshop repair service manual provides detailed, step-by-step procedures for all mechanical and electrical systems. It covers routine maintenance, engine overhaul, transmission service, suspension and brake repairs, fuel system adjustments, and electrical diagnostics. The manual includes crucial torque specifications, diagnostic charts for troubleshooting common issues, and guidance on rebuilding key components, ensuring owners and technicians can effectively maintain and repair the 350 for optimal performance and longevity. 🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 Model Codes: YFM350FX Product Name: Yamaha WOLVERINE 350 2003-2009 Workshop Repair Service Manual PDF Download 👋 Introduction Market Position Market Segment: Mid-size utility ATV, popular for recreational trail riding and general off-road use. Competitive Analysis Competitors: Honda FourTrax 300/350, Suzuki QuadRunner 300, Kawasaki Bayou 300. Key Features Features: Shaft drive, comfortable suspension, reliable air-cooled engine, proven durability. 📋 Manual Details Coverage Areas Applicable Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009 Vehicle Type: All-Terrain Vehicle (ATV) Page Count Page Count: Estimated 400+ Manual Type Manual Type: Workshop Repair Service Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, troubleshooting, diagnostics, carburetor, ignition system, cooling system. Transmission: Clutch, gearbox, drive shafts, lubrication. Suspension: Front and rear suspension, shock absorbers, control arms, steering linkage. Brakes: Hydraulic brake system, master cylinder, calipers, brake lines, bleeding procedures. Electrical: Wiring diagrams, lighting system, battery, starter, charging system, ignition coils, CDI unit. Fuel System: Fuel tank, fuel lines, fuel filter, carburetor tuning and rebuilding. Chassis: Frame, bodywork, fenders, seat, handlebars, footpegs. Wheels And Tires: Wheel bearing maintenance, tire pressure specifications. Drive System: Final drive, differential (if applicable to specific sub-models), shaft and U-joints. Cooling System: Engine oil cooling (oil cooler and lines). Exhaust System: Muffler, exhaust pipe, heat shields. Procedures Included Maintenance: Routine maintenance, oil changes, filter replacements, spark plug checks, lubrication points. Troubleshooting: Diagnostic charts for common problems and their solutions. Repair: Detailed step-by-step repair procedures for all major components. Rebuilding: Complete rebuilding procedures for engine, transmission, and carburetor. Diagnostics: Troubleshooting guides, fault finding techniques. Torque Specifications: Includes critical torque values for engine, chassis, and suspension components. Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds and electrical diagnostics). Diagnostic Tools: Covers procedures requiring basic hand tools, torque wrenches, and potentially a multimeter for electrical diagnostics. Manual Type Manual Scope: Comprehensive service and repair procedures for all mechanical and electrical systems. 📊 Manual Specifications File Format File Format: Searchable PDF Print Quality Print Quality: High-resolution, clear illustrations and text for easy printing. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled, 2-valve Displacement: 348cc Bore X Stroke: 83 mm x 64.5 mm Compression Ratio: 8.6:1 Carburetor: Mikuni BNS32 (single) Performance Horsepower: Approx. 20-22 HP (estimated) Torque: Approx. 20-22 lb-ft (estimated) Fuel System Fuel Type: Unleaded gasoline Fuel Tank Capacity: 3.4 US gal (12.9 L) Ignition Ignition System: CDI (Capacitor Discharge Ignition) Cooling Cooling Method: Air-cooled 🔧 Transmission Standard Transmission Type: 5-speed manual with reverse Optional Optional Transmission: N/A Features Drive Type: Shaft Drive (2WD) Clutch: Wet, multiple disc clutch Lubrication Transmission Oil Type: Yamalube 4 (or equivalent SAE 10W-40 API SG) motor oil 📐 Dimensions Exterior Length: 75.2 in (1910 mm) Width: 43.7 in (1110 mm) Height: 43.3 in (1100 mm) Wheelbase: 49.2 in (1250 mm) Weights Dry Weight: 467 lbs (212 kg) Curb Weight: N/A (typically around 490-500 lbs with fluids) Ground Clearance Ground Clearance: 9.3 in (235 mm) 🛡️ Safety Features Ratings Safety Ratings: N/A (ATVs generally do not have NHTSA or IIHS ratings) Active Features Braking System: Hydraulic disc brakes (front and rear) Passive Features Lighting: Dual 30W headlights, 5W taillight/stoplight. Ergonomics Handlebars: Standard ATv handlebars with comfortable grip. 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV, no integrated infotainment system). Driver Assistance Driver Assistance: N/A (No electronic driver assistance features). Connectivity Connectivity: N/A (No connectivity features). Lighting Technology Headlights: Standard halogen bulbs. 🔧 Maintenance Service Intervals Engine Oil Change: Every 1,000 km (600 miles) or 6 months. Spark Plug Check: Every 1,000 km (600 miles). Air Filter Cleaning: Every 1,000 km (600 miles), or more frequently in dusty conditions. Gear Oil Change: Every 2,000 km (1,200 miles) or 12 months. Fluid Specifications Engine Oil Capacity: 1.8 L (1.9 US qt) without filter change; 1.9 L (2.0 US qt) with filter change. Transmission Oil Capacity: 0.65 L (0.69 US qt). Brake Fluid:...