This manual covers the 350 4x4 All-Terrain Vehicle (ATV), chassis codes YFM350X / YFM350FX, produced for the model years 1995 through 2004. Known for its established utility and trail-oriented design, the 350 offers a robust chassis, a reliable air-cooled engine, and a capable 4WD system, making it a dependable choice for recreational riding and light utility tasks. The heritage in powersports is evident in this model's focus on balanced performance and comfort for extended use, competing effectively within its segment. This comprehensive Factory Service Repair Manual in English provides detailed guidance for the maintenance and repair of your 350 ATV. It covers all essential systems, including engine mechanicals, fuel, ignition, cooling, transmission, drivetrain, suspension, steering, brakes, and the electrical system. Within its extensive pages, you will find step-by-step procedures for scheduled maintenance, troubleshooting common issues, disassembly and assembly, rebuilds, adjustments, and detailed wiring schematics. This manual is an indispensable resource for owners and technicians to ensure the optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 Model Variant: 4x4 Body Style: ATV (All-Terrain Vehicle) Codes Chassis Code Common: YFM350X / YFM350FX 👋 Introduction Market Position Market Position: Established utility and trail-oriented ATV model known for reliability and capability. Competitive Analysis Competitive Landscape: Competed with models from Honda (FourTrax), Suzuki (QuadRunner), and Kawasaki (Bayou) in the mid-displacement utility ATV segment. Key Features Key Features: Robust chassis, reliable air-cooled engine, capable 4WD system, comfortable riding position for extended use. Manual Utility Manual Utility: Essential for owners and technicians seeking detailed repair, maintenance, and diagnostic information. 📋 Manual Details Coverage Areas Applicable Years: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Page Count Estimated Page Count: High (Typically 300-500 pages for factory service manuals of this era) Manual Type Manual Type: Factory Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul, disassembly, assembly, component inspection, tolerances Fuel System: Carburetor service, fuel pump, fuel tank, fuel lines Ignition System: CDI unit, ignition coil, spark plug, wiring Cooling System: Radiator, fan, coolant, hoses, thermostat (if applicable) Transmission Drivetrain: Gearbox, clutch, driveshafts, differentials, AWD system (if applicable) Suspension Steering: Front and rear suspension components, steering column, tie rods, wheel alignment Brakes: Hydraulic system, calipers, master cylinder, brake pads, lines, bleeding procedures Electrical System: Wiring diagrams, battery, starter, lighting, switches, fuses, relays Chassis Frame: Frame inspection, maintenance, component mounting Bodywork Panels: Fender, seat, handlebar, plastic trim removal and installation Procedures Included Scheduled Maintenance: Oil changes, filter replacements, lubrication, inspections Troubleshooting Diagnostics: Step-by-step diagnostic procedures for common problems Disassembly Assembly: Detailed instructions for removing and reinstalling major components Rebuild Procedures: Complete engine and transmission rebuild instructions Adjustment Calibration: Carburetor tuning, chain adjustment, brake adjustment Wiring Schematics: Detailed electrical system diagrams for fault finding Technical Depth Technical Depth: Comprehensive factory-level repair and maintenance guidance Diagnostic Codes: Includes diagnostic procedures for fault identification 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, suitable for printing Binding Type Binding Type: N/A (Downloadable PDF) Paper Type Paper Type: N/A (Downloadable PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, Air-cooled Displacement: 348 cc Bore X Stroke: 83.0 mm x 64.5 mm Compression Ratio: 9.2:1 Performance Estimated Horsepower: Approx. 20-22 HP (at crankshaft, figures vary) Estimated Torque: Approx. 20-22 lb-ft (at crankshaft, figures vary) Fuel System Carburetor Type: Mikuni VM Series (e.g., VM32SS) Fuel Type: Unleaded gasoline, minimum 87 octane Ignition System Ignition System: CDI (Capacitor Discharge Ignition) Starting System Starting System: Electric Start 🔧 Transmission Standard Transmission Type: 5-speed manual with automatic clutch and reverse Features Drivetrain: Shaft drive, selectable 4WD Final Drive: Sealed O-ring chain 📐 Dimensions Exterior Overall Length: Approx. 74.0 inches (1880 mm) Overall Width: Approx. 44.3 inches (1125 mm) Overall Height: Approx. 43.5 inches (1105 mm) Wheelbase: Approx. 49.0 inches (1245 mm) Ground Clearance: Approx. 8.7 inches (220 mm) Weights Dry Weight: Approx. 540 lbs (245 kg) Fuel Capacity: 3.1 US gal (11.7 L) with reserve Towing Capacity: Not officially specified for this model, but typically limited for utility ATVs. Dimensions Front Tire Size: AT25x8-12 Rear Tire Size: AT25x10-12 🛡️ Safety Features Ratings Atv Safety Considerations: As with all ATVs, safe operation requires proper training, protective gear, and adherence to manufacturer guidelines. This manual provides operational and maintenance information to support safe use. Active Features Braking System: Hydraulic disc brakes front and rear 💡 Technology Features Infotainment Infotainment Features: Basic, focused on utility and operation. No advanced infotainment systems are present. Driver Assistance Driver Assistance Features: None; rider is in full control. Connectivity Connectivity Features: None; mechanical and electrical systems only. 🔧 Maintenance Service Intervals Engine Oil Change: Every 100 hours or 6 months (whichever comes first), consult manual for specific intervals based on usage. Air Filter Cleaning: Every 20 hours or as needed...