This manual covers the YFM Wolverine 350 ATV, a 1999 model known for its reliable air-cooled engine, capable suspension, and robust chassis. Designed as a recreational and light utility vehicle, it offers a blend of performance and ease of maintenance, making it a popular choice for various off-road activities. Its durable construction and straightforward engineering contribute to its reputation for longevity and user-friendliness in the mid-size ATV segment. The YFM Wolverine 350 Service Repair Manual provides comprehensive guidance for maintenance and repair procedures. It is intended for both do-it-yourself enthusiasts and professional technicians, detailing everything from routine servicing, such as oil changes and filter replacements, to in-depth component overhauls. The manual includes diagnostic charts, troubleshooting steps, and technical specifications for all major systems, including the engine, transmission, chassis, and electrical components, ensuring optimal performance and longevity of your ATV. 🏷️ Basic Information Identification Make: Yamaha Model: YFM Wolverine 350 Model Year: 1999 Vehicle Type: ATV (All-Terrain Vehicle) Codes Chassis Code: 4WV 👋 Introduction Market Position Market Segment: Recreational ATV, mid-size utility/sport hybrid Competitive Analysis Competitors: Honda TRX300EX/FourTrax, Suzuki LT-F300 King Quad, Kawasaki Bayou 300 Key Features Key Selling Points: Reliable air-cooled engine, capable suspension, robust chassis, known for ease of maintenance and durability in its class Manual Value Proposition Manual Benefit: Empowers owners to perform maintenance and repairs, saving time and money, ensuring optimal performance and longevity of the ATV 📋 Manual Details Coverage Areas Primary Coverage: Maintenance and Repair Procedures Target Audience: Do-it-yourselfers and experienced technicians Page Count Estimated Page Count: Refer to actual document for definitive count (typically 300-500 pages for this era/model) Manual Type Manual Type: Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Systems: Engine disassembly/assembly, tuning, lubrication, cooling system, fuel system (carburetor specifics), exhaust system Transmission Drivetrain: Clutch operation and adjustment, gearbox inspection and repair, drive shaft and differential maintenance Chassis Suspension: Front and rear suspension geometry, shock absorber service, steering system components and repair Braking System: Brake caliper overhaul, brake pad replacement, hydraulic system bleeding, brake drum service Electrical System: Ignition system diagnosis and repair, charging system (stator, rectifier/regulator), starter motor, lighting, wiring diagrams and troubleshooting Bodywork Plastics: Panel removal and installation, trim component service Procedures Included Maintenance: Routine inspections, oil changes, filter replacements, lubrication points, chain adjustment Troubleshooting: Diagnostic procedures for common malfunctions, symptom-based fault finding Repair: Component-level repair, rebuild procedures, replacement of worn parts Diagnostics: Step-by-step diagnostic charts, electrical system testing Technical Depth Technical Depth: Comprehensive, covering from basic adjustments to complete engine and transmission rebuilds 📊 Manual Specifications File Format File Format: PDF Searchability: Likely searchable text (depending on scan quality) Print Quality Print Quality: High-resolution, suitable for printing individual pages or the entire manual Binding Type Binding Type: N/A (Digital Download - PDF) Paper Type Paper Type: N/A (Digital Download - PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Four-stroke, SOHC, air-cooled Displacement: 348cc Bore X Stroke: 83.0 mm x 64.5 mm Compression Ratio: 9.2:1 Performance Horsepower Estimated: ~20 hp @ 6000 rpm (estimated, varies by market/tuning) Torque Estimated: ~26 Nm @ 4500 rpm (estimated) Fuel System Fuel Delivery: Carburetor Carburetor Model: Mikuni VM34SS (typical) Fuel Type: Unleaded gasoline Fuel Capacity: 11.0 L (2.9 gal) including reserve Lubrication Oil Type: Yamalube 4T or SAE 10W-40 API SE or SF classifying oil Oil Capacity With Filter Change: 1.90 L (2.0 qt) Ignition Ignition System: C.D.I. (Capacitor Discharge Ignition) Cooling System Cooling Method: Air-cooled 🔧 Transmission Standard Transmission Type: 5-speed semi-automatic with reverse Features Clutch Type: Wet, multi-disc Drivetrain Drive System: Shaft drive to rear wheels, 2WD Gear Ratios 1St Gear Ratio: 3.273 (36/11) 2Nd Gear Ratio: 2.000 (32/16) 3Rd Gear Ratio: 1.375 (33/24) 4Th Gear Ratio: 1.130 (29/25) 5Th Gear Ratio: 0.960 (24/25) Reverse Gear Ratio: 3.750 (15/4) 📐 Dimensions Exterior Length: 1835 mm (72.2 in) Width: 1090 mm (42.9 in) Height: 1120 mm (44.1 in) Wheelbase: 1210 mm (47.6 in) Ground Clearance: 240 mm (9.4 in) Weights Dry Weight: 220 kg (485 lbs) Curb Weight: Approx. 230 kg (507 lbs) (with all necessary fluids) Cargo Front Rack Capacity: 20 kg (44 lbs) Rear Rack Capacity: 40 kg (88 lbs) 🛡️ Safety Features Ratings Atv Safety Standards: Designed to meet ANSI/SVIA 1-2001 standards Active Features Braking System Type: Hydraulic disc front, drum rear Parking Brake: Mechanical parking brake lever Passive Features Lighting: Dual headlights, tail light/brake light Safety Features: Thumb throttle with safety limiter, handlebar guards, footwells 💡 Technology Features Infotainment Infotainment System: N/A (Basic ATV design) Driver Assistance Driver Assistance Features: N/A (Basic ATV design) Connectivity Connectivity Features: N/A (Basic ATV design) 🔧 Maintenance Service Intervals Engine Oil Change: Every 1000 km or 6 months (whichever comes first) Air Filter Cleaning: Every 500 km or as needed in dusty conditions Spark Plug Replacement: Every 3000 km or 1 year Valve Clearance Check:...