The Yamaha YFM350 Wolverine 350 is a versatile All-Terrain Vehicle (ATV) produced from 1995 through 2004. Known for its reliability and utility, this model is designed for both recreational trail riding and light-duty farm work. It features a robust 348cc air-cooled engine paired with a 5-speed manual transmission, automatic clutch, and shaft drive, offering dependable performance across various terrains. The Wolverine 350 is recognized for its comfortable seating and capable suspension, making it a popular choice in the utility ATV market, often competing with models from Honda, Kawasaki, and Suzuki. This comprehensive workshop service repair manual provides detailed information for the Yamaha YFM350 Wolverine 350, covering all model years from 1995 to 2004. It encompasses a wide range of essential maintenance and repair procedures, including complete engine overhauls, fuel system servicing, ignition system diagnostics, drivetrain maintenance, suspension and brake system repairs, and electrical system troubleshooting. The manual offers systematic diagnostic procedures, technical specifications, and guidance on special tools, empowering owners and technicians to effectively maintain, repair, and ensure the optimal performance and longevity of their vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: YFM350 Wolverine 350 Vehicle Type: All-Terrain Vehicle (ATV) Generation Model Years Covered: 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 👋 Introduction Market Position Category: Utility ATV, known for its reliability and versatility for recreational and light-duty farm use. Competitive Analysis Key Competitors: Honda FourTrax 300/350, Kawasaki Bayou 300/360, Suzuki QuadRunner 300/300E. Key Features Model Highlights: Proven 348cc air-cooled engine, reliable shaft drive, comfortable seating, and capable suspension for varied terrain. 📋 Manual Details Coverage Areas Coverage Description: This is a comprehensive workshop service and repair manual for the Yamaha YFM350 Wolverine 350 ATV, covering all specified model years. Page Count Estimated Page Count: Typically 300-500 pages (actual count may vary based on original manufacturer publication and inclusion of supplements). Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete overhaul, disassembly, assembly, inspection, tuning, and troubleshooting of the 348cc air-cooled engine. Fuel System: Carburetor (Mikuni BSR33) servicing, adjustment, and troubleshooting; fuel pump operation; fuel tank and lines. Ignition System: CDI ignition system components, testing, timing, and troubleshooting. Drivetrain: Shaft drive system, differential, axle servicing, U-joints, and drive shaft inspection. Suspension: Front and rear suspension systems, shock absorbers, springs, control arms, and bushings. Braking System: Front and rear brake caliper servicing, pad replacement, fluid flush and bleed, master cylinder, and brake lines. Electrical System: Wiring diagrams, lighting system, starter motor, battery charging system (stator and regulator/rectifier), fuses, switches, and relays. Cooling System: Air-cooled engine heat dissipation, fan operation (if applicable). Chassis And Frame: Frame inspection, welding points, steering system components (handlebar, steering stem, bearings). Wheels And Tires: Tire pressure recommendations, wheel bearing maintenance, lug nut torque specifications. Bodywork: Fender removal/installation, plastic panel maintenance, seat removal. Procedures Included Preventive Maintenance: Scheduled maintenance tasks, lubrication points, filter replacements, valve adjustments. Troubleshooting: Systematic diagnostic procedures for common and uncommon issues, symptom-based problem solving. Engine Repair: Top-end rebuild, bottom-end overhaul, piston/ring replacement, crankshaft service, gasket replacement. Carburetor Rebuild: Detailed steps for disassembling, cleaning, inspecting, and reassembling the carburetor with jetting information. Electrical Diagnostics: Testing of ignition coils, stators, starter motors, and switches using multimeters and diagnostic tools. Suspension Adjustment: Fork oil changes, spring preload adjustments, rear shock adjustments. Brake Service: Complete brake bleeding procedure, caliper piston service, and pad replacement. Drivetrain Maintenance: Greasing of U-joints, differential oil change, drive shaft alignment checks. Steering System Service: Steering stem bearing adjustment and replacement. Technical Depth Depth Level: Comprehensive, from basic maintenance and routine checks to complete engine and drivetrain rebuilds. Diagnostic Capabilities: Detailed diagnostic flowcharts and specifications for identifying and resolving mechanical and electrical issues. Special Tools: Identification of required special tools and equipment for specific repair procedures. 📊 Manual Specifications File Format File Type: Portable Document Format (PDF) Searchability: Likely text-searchable if originally produced digitally or scanned with OCR. Print Quality Image Resolution: Depends on the quality of the original scan; typically high enough for clear diagrams and text. Binding Type Binding: N/A (Digital Download) Paper Type Paper Quality: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled, single-cylinder Displacement: 348 cc (21.2 cubic inches) Bore X Stroke: 83.0 mm x 64.5 mm Compression Ratio: 8.8:1 Performance Horsepower Estimate: Approximately 18-20 HP (specific figures vary by year and tuning). Torque Estimate: Approximately 20-22 lb-ft (specific figures vary by year and tuning). Fuel System Carburetor Model: Mikuni BSR33 Fuel Type: Unleaded gasoline Lubrication Oil Type Specification: Yamalube 4 (or equivalent SAE 10W-40 API SE, SF, SG, SH, SJ or higher classification) engine oil. Ignition Ignition System Type: CDI (Capacitor Discharge Ignition) 🔧 Transmission Standard Transmission Type: 5-speed manual with automatic clutch and Reverse Optional Gearbox Options: N/A (Standard 5-speed manual with reverse) Features Clutch Type: Automatic...