The Yamaha YFM350 Wolverine, produced in 2002, is a versatile All-Terrain Vehicle (ATV) designed for recreational riders and utility users. Known for its balance of trail capability and durability, this model features a robust 4-stroke, SOHC, air-cooled 348cc engine, delivering reliable performance for moderate off-road conditions. Its engineering emphasizes user-friendly operation, making it a capable choice for both leisure and practical tasks, aligning with a reputation for creating dependable powersports vehicles. The YFM350 Wolverine was a strong competitor in its segment, offering a practical and enduring platform. This comprehensive factory service repair manual covers the Yamaha YFM350 Wolverine, providing detailed information for maintenance, repair, and rebuild procedures. It encompasses all major systems, including the engine mechanicals, fuel, ignition, cooling, transmission, drivetrain, suspension, brakes, steering, electrical systems, frame, and wheels. The manual offers step-by-step instructions, diagnostic charts for troubleshooting, and essential technical specifications. It is an indispensable resource for owners and technicians aiming to maintain the optimal performance and longevity of their 2002 Yamaha YFM350 Wolverine. 🏷️ Basic Information Identification Make: Yamaha Model: YFM350 Wolverine Year: 2002 Codes Chassis Code Identifier: YFM350 👋 Introduction Market Position Vehicle Type: All-Terrain Vehicle (ATV) Target Audience: Recreational riders, utility users, and mechanics focused on performance and reliability in off-road conditions. Competitive Analysis Competitors: Honda FourTrax, Suzuki QuadRunner, Kawasaki Bayou (during its production era) Key Features Vehicle Focus: Versatility, durability, and user-friendly operation for moderate off-road trails and utility tasks. 📋 Manual Details Coverage Areas Primary Coverage: Factory Service Repair Manual Secondary Coverage: Maintenance, Repair, Rebuild, Refurbish, Restoration Page Count Estimated Pages: Approximately 300-500 (Typical for comprehensive factory manuals of this era) Manual Type Type: Service Manual / Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine teardown, assembly, timing, valve adjustments, piston/cylinder inspection and replacement. Fuel System: Carburetor diagnosis and adjustment, fuel pump, fuel lines, fuel filter service. Ignition System: CDI unit, ignition coil, spark plug specifications, testing and replacement. Cooling System: Radiator, coolant, fan operation, thermostat service (if applicable). Transmission Drivetrain: Automatic transmission (CVT) operation, clutch inspection, belt replacement, gear case lubrication and service. Suspension: Front and rear suspension components, shock absorber servicing, bushings, ball joint inspection. Brakes: Hydraulic brake system, master cylinder, brake calipers, brake pads, brake fluid specifications, bleeding procedures. Steering: Steering mechanism, tie rod ends, steering column adjustment, lubrication. Electrical System: Wiring diagrams, battery specifications, charging system (stator, regulator/rectifier), lighting, starter motor, switches. Frame Chassis: Frame inspection, component mounting, body panel removal and installation. Wheels Tires: Tire pressure recommendations, wheel bearing maintenance, rim specifications. Procedures Included Maintenance: Routine checks, oil changes, filter replacements, lubrication points, valve clearance adjustments. Troubleshooting: Diagnostic charts for common problems, symptoms, and potential causes across all systems. Repair: Step-by-step instructions for component removal, repair, and reinstallation with torque specifications. Rebuild: Detailed procedures for rebuilding major components like the engine and transmission. Technical Depth Depth: Comprehensive from basic preventative maintenance to in-depth engine and transmission overhauls. Includes diagnostic procedures and specifications. 📊 Manual Specifications File Format Digital Format: PDF (Portable Document Format) Print Quality Digital Quality: High-resolution, typically scanned from original factory documentation. Searchable text functionality may vary. Binding Type Binding: Not Applicable (Downloadable PDF) Paper Type Paper Quality: Not Applicable (Downloadable PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 4-Stroke, SOHC, Air-Cooled Displacement: 348cc Bore X Stroke: 83.0 mm x 64.5 mm Compression Ratio: 9.2:1 Power Output Estimation: Approx. 21-24 HP (Specific factory figures not always published for ATVs) Torque Estimation: Approx. 20-23 lb-ft (Specific factory figures not always published for ATVs) Fuel System Carburetor Type: Mikuni BSR33, 33mm, Flat Slide, with Accelerator Pump Fuel Type: Unleaded gasoline (Regular octane) Ignition Ignition System: CDI (Capacitor Discharge Ignition) Lubrication Oil Type: Yamalube 4 (or equivalent API SG or higher, SAE 10W-40, 20W-40, or 20W-50 depending on temperature) Oil Capacity: 1.90 L (2.0 US qt) with oil filter change 🔧 Transmission Standard Transmission Type: Automatic (Yamaha Constant Velocity Transmission - YCC-T) Drive Type: 2WD (Shaft Drive) Gear Reduction Ratio: Refer to manual for specific ratios (typical for YFM 350 series) Features Clutch Type: Wet, centrifugal type Gear Selection: Forward, Neutral, Reverse Fluid Specifications Gear Oil Type: Yamalube Gear Oil (or equivalent SAE 80 hypoid gear oil) Gear Oil Capacity: 0.15 L (0.16 US qt) 📐 Dimensions Exterior Length: 1930 mm (76.0 in) Width: 1095 mm (43.1 in) Height: 1155 mm (45.5 in) Wheelbase: 1280 mm (50.4 in) Ground Clearance: 170 mm (6.7 in) Weights Dry Weight: 245 kg (540 lbs) Fuel Capacity: 13.0 L (3.4 US gal) (Includes 2.0 L / 0.5 US gal reserve) Cargo Front Rack Capacity: 20 kg (44 lbs) Rear Rack Capacity: 40 kg (88 lbs) 🛡️ Safety Features Ratings Safety Certification: ANSI/SVIA 1-2001 (Standard for Four Wheel All-Terrain Vehicle) compliance Active Features Braking System: Hydraulic disc brakes front and rear, with self-adjusting parking brake....