🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 Model Line: ATV Model Code: YFM350 Codes Vin Code: Likely starts with 'JY' 👋 Introduction Market Position Category: Mid-size Utility ATV Target Audience: Recreational riders, utility users, and DIY mechanics. Competitive Analysis Competitors: Honda TRX350, Suzuki LT-F300 King Quad, Kawasaki Bayou 300. Key Features Powertrain Durability: Known for its robust and reliable engine and drivetrain. Versatility: Suitable for various terrains and riding conditions. Ease Of Maintenance: Designed for relatively straightforward maintenance by owners. 📋 Manual Details Coverage Areas Applicable Years: 2003, 2004, 2005, 2006, 2007, 2008, 2009 Page Count Estimated Pages: Hundreds (specific number not provided, but typical for comprehensive service manuals) Manual Type Type: Service Repair Manual Language Language: English Format Format: PDF (Downloadable) 📖 Manual Coverage Systems Covered Engine: Comprehensive coverage including disassembly, assembly, troubleshooting, diagnostics, tuning, and component replacement. Transmission: Detailed information on gearbox operation, maintenance, and repair procedures. Drivetrain: Coverage for shaft drive, differential, and related components. Suspension: Front and rear suspension systems, including shock absorbers, springs, control arms, and bushings. Brakes: Front and rear braking systems, including hydraulic lines, calipers, master cylinders, and brake pads/shoes. Electrical System: Wiring diagrams, ignition system, charging system, lighting, starter, and troubleshooting of electrical faults. Fuel System: Carburetor assembly, fuel pump, fuel lines, and tank maintenance. Cooling System: Radiator, fan, thermostat, and coolant flow. Exhaust System: Muffler, exhaust pipe, and gasket replacement. Chassis Frame: Frame inspection, component mounting, and alignment. Bodywork Plastics: Panel removal, installation, and care of plastic body components. Steering: Steering column, tie rods, and steering linkage maintenance. Procedures Included Maintenance: Regular servicing, lubrication, filter changes, and inspections. Troubleshooting: Diagnostic flowcharts and common problem resolution for various systems. Repair: Step-by-step instructions for component removal, repair, and reinstallation. Rebuilding: Comprehensive guidance for overhauling major components like the engine and transmission. Restoration: Guidance for bringing the vehicle back to original specifications. Technical Adjustments: Carburetor tuning, idle speed adjustments, and clutch adjustments. Technical Depth Depth: Full mechanical and electrical repair, including detailed diagrams and specifications. 📊 Manual Specifications File Format Format: PDF Searchable: Typically yes for professionally produced PDF manuals. Print Quality Quality: High-resolution, suitable for printing. Binding Type Binding Type: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: 4-stroke, SOHC, air-cooled Displacement: 348cc Bore X Stroke: 83 mm x 64.5 mm Compression Ratio: 9.7:1 Carburetion: Mikuni BSR33/1 (single carburetor) Performance Horsepower Est: Approximately 20-22 HP (at flywheel, specific dyno data may vary) Torque Est: Approximately 18-20 lb-ft (at flywheel, specific dyno data may vary) Fuel System Fuel Type: Unleaded gasoline, minimum 87 octane Fuel Tank Capacity: 3.6 L (0.95 US gal), including reserve Ignition Ignition System: CDI (Capacitor Discharge Ignition) Cooling System Cooling Method: Air-cooled 🔧 Transmission Standard Transmission Type: 5-speed constant mesh with automatic centrifugal clutch and reverse Final Drive: Shaft drive, enclosed oil bath Features Clutch Type: Automatic centrifugal clutch Reverse Gear: Yes 📐 Dimensions Exterior Length: Approx. 1990 mm (78.3 in) Width: Approx. 1095 mm (43.1 in) Height: Approx. 1155 mm (45.5 in) Wheelbase: Approx. 1280 mm (50.4 in) Weights Dry Weight: Approx. 213 kg (470 lbs) Wet Weight Est: Approx. 220 kg (485 lbs) (with fluids) Cargo Front Rack Capacity Est: Approx. 45 kg (99 lbs) Rear Rack Capacity Est: Approx. 85 kg (187 lbs) Wheels Tires Front Tire Size: AT25 x 8-12 Rear Tire Size: AT25 x 10-12 Wheel Type: Steel 🛡️ Safety Features Ratings Atv Safety Standards: Conforms to ANSI standards applicable to recreational off-highway vehicles. Active Features Braking System: Hydraulic disc front, hydraulic drum rear. Passive Features Throttle Limiter: Adjustable throttle stop for new riders. Footwells: Integrated wide footwells with heel guards for rider protection. 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV, no integrated infotainment system). Driver Assistance Traction Control: No ABS: No Connectivity Connectivity Features: N/A 🔧 Maintenance Service Intervals Initial Break In: Refer to manual for specific break-in procedures (typically first 10-20 hours). Engine Oil Change: Every 100 hours or annually (refer to manual for exact mileage/time). Air Filter Cleaning: Every 20 hours or more frequently in dusty conditions. Spark Plug Replacement: Refer to manual, typically every 2,000-3,000 miles or annually. Differential Oil Change: Every 200 hours or annually. Fluid Specifications Engine Oil Type: Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher, JASO MA compliant. Engine Oil Capacity: 1.7 L (1.8 US qt) without filter change, 1.8 L (1.9 US qt) with filter change. Final Drive Oil Type: Yamalube SAE 80 API GL-4 hypoid gear oil. Final Drive Oil Capacity: 0.13 L (0.14 US qt) Brake Fluid Type: DOT 3 or DOT 4 hydraulic brake fluid. Known Issues Carburetor Fouling: Common issue with gumming if fuel sits for extended periods; requires cleaning or rebuild. Starter Clutch Wear: Can wear over time, leading to slipping or failure to engage...