This manual covers the 2002 Yamaha YFM Wolverine 350, a capable All-Terrain Vehicle (ATV) known for its versatility and reliability in various terrains. Engineered with a robust air-cooled, 4-stroke engine and an automatic transmission featuring the Ultramatic® clutch system, the YFM Wolverine 350 offers a user-friendly and dependable riding experience. Its design emphasizes durability and performance, making it a suitable choice for utility tasks and recreational trail riding. The selectable 2WD/4WD system, coupled with hydraulic disc brakes, enhances its all-weather capability and control. This comprehensive Factory Service Repair Manual in English provides detailed guidance for the maintenance, repair, and troubleshooting of your Yamaha YFM Wolverine 350. It includes in-depth instructions for engine overhaul, carburetion adjustments, electrical system diagnostics, and chassis component service, covering everything from routine periodic inspections to complex repair procedures. This manual is an essential resource for owners and technicians alike, enabling them to maintain the vehicle's optimal performance and longevity, ensuring safe and efficient operation. 🏷️ Basic Information Identification Make: Yamaha Model: YFM Wolverine 350 Year: 2002 Vehicle Type: ATV (All-Terrain Vehicle) 👋 Introduction Market Position Segment: Mid-size utility ATV, known for its versatility and reliability. Competitive Analysis Competitors 2002: Honda FourTrax 350, Suzuki QuadSport 340, Kawasaki Bayou 300. Key Features Traction: Selectable 2WD/4WD system (depending on specific trim, typically 4WD for Wolverine). Engine Type: Air-cooled, 4-stroke, SOHC engine. Transmission: Automatic transmission with Ultramatic® clutch system. Value Proposition Repair Cost Savings: Empowers owners to perform maintenance and repairs themselves, significantly reducing labor costs. 📋 Manual Details Coverage Areas Manual Type: Factory Service Repair Manual Language: English Format: PDF Download Compatibility: Windows and MAC Requirements: Adobe PDF Reader 📖 Manual Coverage Systems Covered Engine Overhaul: Complete engine disassembly, inspection, repair, and reassembly procedures. Carburetion: Detailed carburetor adjustment, cleaning, and overhaul instructions. Electrical: Wiring diagrams, component testing, troubleshooting for ignition, lighting, and starting systems. Chassis: Suspension, steering, braking system maintenance, repair, and alignment procedures. Procedures Included Periodic Inspection And Adjustment: Scheduled maintenance checks, fluid level verification, and component adjustments. Troubleshooting: Systematic diagnostic steps for identifying and resolving common and complex issues. Repair Procedures: Step-by-step instructions for component replacement and repair. Technical Depth Depth: Comprehensive, suitable for both home mechanics and professional technicians. 📊 Manual Specifications File Format Format: PDF Printability: Yes, printable pages. Searchability: Likely text-searchable if converted from a high-quality source. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Family: Yamaha 349cc 4-stroke Bore X Stroke: Approximately 83 mm x 64.5 mm (refer to manual for exact figures). Compression Ratio: Approximately 8.7:1 (refer to manual for exact figures). Performance Horsepower: Estimated 20-25 HP (refer to manual for exact figures). Torque: Refer to manual for specific torque figures. Fuel System Fuel Delivery: Carburetor (likely Mikuni BSR33 or similar). Fuel Type: Unleaded gasoline (Octane rating specified in manual). Lubrication Oil Type: Yamalube 4 (or equivalent API SG, SAE 10W-30 or 20W-40 depending on temperature). Oil Capacity: Refer to manual for precise capacity with filter change. Cooling System Cooling Method: Air-cooled Ignition System Ignition Type: CDI (Capacitor Discharge Ignition) 🔧 Transmission Standard Type: Automatic (CVT - Continuously Variable Transmission) with Ultramatic® clutch Drive Modes: High Range, Low Range, Neutral, Reverse Final Drive: Shaft drive (dependent on 2WD/4WD configuration). Features Clutch Engagement: Automatic centrifugal clutch with belt drive system. Fluid Type Transmission Fluid: Yamalube 4 (or equivalent API SG, SAE 10W-30 or 20W-40). 📐 Dimensions Exterior Length: Refer to manual for exact dimensions. Width: Refer to manual for exact dimensions. Height: Refer to manual for exact dimensions. Weights Dry Weight: Approximately 549 lbs (249 kg) (refer to manual for exact figures). Ground Clearance: Refer to manual for exact figures (typically around 8-10 inches). Cargo Front Rack Capacity: Refer to manual for specifications. Rear Rack Capacity: Refer to manual for specifications. 🛡️ Safety Features Ratings Atv Safety Standards: Adheres to ANSI/SVIA standards for ATVs. Active Features Braking System: Hydraulic disc brakes front and rear (dual front, single rear). Engine Braking: Utilizes CVT for engine braking on descents. Passive Features Lighting: Dual 30W headlights, 8W taillight/stoplight. 💡 Technology Features Infotainment Audio System: N/A (Basic utility ATV with no integrated infotainment system). Driver Assistance Traction Control: N/A (Manual transmission and 4WD selectable, not automatic traction control). Connectivity Bluetooth Usb: N/A 🔧 Maintenance Service Intervals Engine Oil Change: Every 1000 km or 3 months (refer to manual for specific conditions). Spark Plug Check: Check and clean every 1000 km or 3 months; replace as needed. Air Filter Cleaning: Clean every 1000 km or 3 months, depending on operating conditions. Valve Clearance Adjustment: Check every 4000 km or 12 months. Fluid Specifications Brake Fluid Type: DOT 3 or DOT 4. Gear Oil Type: Yamalube Gear Oil (or equivalent SAE 80 API GL-4). Known Issues Carburetor Clogging: Common with infrequent use or contaminated fuel; manual details cleaning...