This manual covers the 350 4x4, model YFM350X, for the production years 2001 through 2005. Renowned for its robust engineering and off-road capabilities, the 350 4x4 is a versatile All-Terrain Vehicle designed for challenging terrains. Its single-cylinder, 4-stroke, liquid-cooled 348cc engine, coupled with a 5-speed transmission and 4WD system, provides reliable performance for a variety of recreational and utility purposes. This comprehensive workshop service repair manual provides detailed information essential for maintaining and repairing your 350 4x4. It includes in-depth coverage of engine service, transmission repair, brake systems, electrical systems, suspension, steering, and much more. With step-by-step instructions, diagnostic procedures, and technical specifications, this manual is an indispensable resource for technicians, mechanics, and DIY enthusiasts seeking to ensure optimal performance and longevity of their vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 4x4 Model Years Covered: 2001, 2002, 2003, 2004, 2005 Codes Chassis Code: YFM350X 👋 Introduction Market Position Target Audience: Technicians, mechanics, and DIY enthusiasts Vehicle Segment: All-Terrain Vehicle (ATV) Key Features Value Proposition: Comprehensive repair information at a low price with instant access. Documentation Source: Official Full COMPLETE Factory Service Repair Manual Data Accuracy: Technical data kept like the original manufacturer book. Manual Benefit: Empowers owners and technicians to perform repairs, diagnostics, and maintenance efficiently. Competitive Analysis Competitors: Honda FourTrax 350, Suzuki QuadRunner 300/350, Kawasaki Bayou 300. 📋 Manual Details Coverage Areas Manual Title: Yamaha Wolverine 350 4x4 2001-2005 Workshop Service Repair Manual Manual Type: Workshop Service Repair Manual Page Count Estimated Page Count: Hundreds or thousands Language Language: English Format File Format: PDF Delivery Method: Instant Download Compatibility: All Versions of Windows & Mac Requirements: Adobe PDF Reader & WinZip 📖 Manual Coverage Systems Covered Engine Service Repair: Included Transmission Service Repair: Included Brake System: Included Wiring Diagrams: Included Electrical System: Included Suspension System: Included Steering System: Included Cooling System: Included Fuel Injection System: Included Fuel System: Included Emission System: Included Chassis Body: Included Differential Drive: Included Axles: Included Air Conditioner Heater: Included Engine Control System: Included Restraint System: Included Interior Components: Included Spark Plug Replacement: Included Tire Rotation And Replacement: Included Valve Adjustment: Included Exhaust System Maintenance: Included Lighting System Repair: Included Procedures Included General Maintenance: Included Troubleshooting: Included Periodic Lubrication: Included Tightening Torques: Included Maintenance Check Lists: Included Service Instructions: Included Operation Suggestions: Included Pre Operation Checks: Included Engine Starting Stopping: Included Working Device Operation: Included Traveling Operation: Included Efficient Working Methods: Included Special Worksite Operation: Included Storage Procedures: Included Transportation Preparation: Included Loading Unloading: Included Machine Fixing: Included Technical Depth Depth: Complete Factory Service Repair Manual Diagnostic Procedures: Detailed troubleshooting guides and flowcharts. Rebuild Procedures: Comprehensive procedures for engine, transmission, and differential rebuilds. Manual Completeness Completeness: Covers all aspects of repair and maintenance for the specified model years. 📊 Manual Specifications File Format Print Quality: GREAT QUALITY Printable Format: Printable Pages Binding Type Binding Type: Digital (PDF) Paper Type Paper Type: Not Applicable (Digital) ⚙️ Engine Specifications Primary Engine Engine Type: Single-cylinder, 4-stroke, SOHC, 2-valve Displacement: 348cc Performance Bore X Stroke: 83 mm x 64.5 mm Compression Ratio: 9.2:1 Max Power: Approximately 20-22 hp (estimated, varies by specific model year and tuning) Max Torque: Approximately 26-29 Nm (estimated, varies by specific model year and tuning) Fuel System Fuel Delivery: Carburetor (Mikuni BSR33) Fuel Type: Unleaded gasoline Cooling System Cooling Method: Liquid-cooled Ignition Ignition System: CDI Lubrication Lubrication System: Wet sump 🔧 Transmission Standard Transmission Type: 5-speed constant mesh with automatic clutch and reverse Features Drive System: Shaft drive, 4WD Fluid Specifications Transmission Oil Type: Yamaha's recommended gear oil (refer to manual for specific viscosity) 📐 Dimensions Exterior Length: 1965 mm (77.4 in) Width: 1095 mm (43.1 in) Height: 1020 mm (40.2 in) Weights Dry Weight: 245 kg (540 lbs) Fuel Tank Capacity: 12.0 L (3.2 gal) Oil Capacity: 1.7 L (1.8 US qt) 🛡️ Safety Features Active Features Braking System: Front: Dual hydraulic disc; Rear: Sealed drum brake Parking Brake: Mechanical, drum brake Passive Features Lighting: Dual halogen headlights, taillight, brake light 💡 Technology Features Infotainment Display Cluster: Includes speedometer, odometer, trip meter, neutral indicator, high-beam indicator, oil level indicator. Driver Assistance 4Wd Engagement: Manual lever engagement Connectivity Connectivity Features: None (basic utilitarian ATV) 🔧 Maintenance Service Intervals Engine Oil Change: Refer to manual for recommended intervals (typically every 100 hours or annual). Air Filter Cleaning: Refer to manual for recommended intervals (frequently inspected based on usage). Fluid Specifications Engine Oil Type: API SG or higher, SAE 10W-30 or 20W-40 (refer to manual for specific recommendations) Coolant Type: Ethylene glycol based antifreeze mixed with distilled water (50:50 ratio) Known Issues Common Wear Items: Brake pads, tires, air filter, spark plug Potential Problems: Carburetor cleaning/adjustment, suspension wear, drive shaft issues (typical for off-road vehicles of this era). 📚 Vehicle History Brand Heritage Manufacturer: Yamaha Motor Corporation Model Evolution Model Line Context: Part of...