The Yamaha Wolverine 350 (YFM350X) is a capable all-terrain vehicle (ATV) renowned for its robust construction and dependable performance, making it a suitable choice for both recreational trail riding and light-duty work. This 2001 model features a reliable 348cc air-cooled, four-stroke engine, independent front suspension, and shaft drive, all contributing to its solid reputation for durability and ease of operation within its class. The Wolverine 350 has been recognized for its well-balanced design and user-friendly characteristics, solidifying its place among popular utility ATVs. This comprehensive service manual provides detailed instructions and technical specifications essential for the maintenance, repair, and troubleshooting of your 2001 Yamaha Wolverine 350. It covers all major systems, including the engine, fuel, ignition, drivetrain, suspension, brakes, and electrical components. With step-by-step procedures for disassembly, assembly, adjustments, and routine maintenance, this manual serves as an invaluable resource for owners and technicians alike, ensuring the continued optimal performance and longevity of the vehicle. 🏷️ Basic Information Identification Make: Yamaha Model: Wolverine 350 Year: 2001 Vehicle Type: All-Terrain Vehicle (ATV) Codes Chassis Code: YFM350X 👋 Introduction Market Position Positioning: The Yamaha Wolverine 350 (YFM350X) was a popular mid-size utility ATV known for its robust performance and reliability in recreational and light-duty work applications. Competitive Analysis Competitors: Competed with models like the Honda FourTrax 300/350, Suzuki QuadRunner 300/350, and Kawasaki Bayou 300/300. Key Features Features: Shaft drive, selectable 2WD/4WD (on some variants, though this manual focuses on a specific configuration), independent front suspension, and a reliable air-cooled engine. 📋 Manual Details Coverage Areas General Coverage: Comprehensive repair and maintenance for the 2001 Yamaha Wolverine 350. Specific Systems: Engine, drivetrain, suspension, brakes, electrical, chassis, bodywork, and more. Page Count Estimated Pages: 300-400 Manual Type Type: Factory Service Manual / Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed disassembly, assembly, inspection, and repair of the engine, including cylinder head, piston, crankshaft, and valve train. Fuel System: Carburetor (Mikuni BS34) service, adjustment, and troubleshooting; fuel tank and line maintenance. Ignition System: CDI ignition system testing and troubleshooting, spark plug specifications. Drivetrain: Clutch operation, adjustment, and replacement; gearbox and differential service; drive shaft and universal joint maintenance. Suspension: Front and rear suspension component inspection, replacement (shocks, springs, linkages), and alignment specifications. Brakes: Hydraulic brake system service, including caliper overhaul, brake pad replacement, brake fluid specifications, and bleeding procedures. Electrical System: Wiring diagrams, battery service, starter motor, lighting, and charging system troubleshooting. Chassis Frame: Frame inspection, steering system service, and wheel bearing maintenance. Bodywork Trim: Body panel removal and installation, fender and rack components. Procedures Included Maintenance: Routine maintenance tasks, lubrication points, filter replacement, and fluid level checks. Troubleshooting: Systematic diagnostic procedures for common and uncommon issues. Repair: Step-by-step instructions for component repair and replacement. Disassembly Assembly: Detailed instructions for taking components apart and putting them back together. Adjustments: Specific adjustment procedures for clutch, carburetor, and brakes. Technical Depth Depth: Comprehensive, covering basic maintenance to advanced engine rebuilding and electrical system diagnostics. 📊 Manual Specifications File Format File Format: PDF Print Quality Quality: High-resolution, clear diagrams and text for easy readability and printing. Binding Type Binding: N/A (Digital PDF) Paper Type Paper Type: N/A (Digital 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: 9.7:1 Performance Horsepower: Approximately 19-20 HP (estimated, actual may vary) Torque: Not explicitly stated in product info, but robust for its class. Fuel System Carburetor Model: Mikuni BS34 Fuel Type: Unleaded gasoline, minimum 87 octane Oil Specifications Engine Oil Type: Yamalube 4 (or equivalent) SAE 20W-40 or SAE 10W-30 API SE, SF, SG, SH, SJ, or higher 🔧 Transmission Standard Transmission Type: 5-speed manual with automatic clutch and reverse Optional Optional Gearbox: N/A for this model year Features Drive System: Shaft drive, 2WD (rear-wheel drive) Fluid Specifications Transmission Oil Type: Yamalube Gear Oil (or equivalent) SAE 80 API GL-4 📐 Dimensions Exterior Overall Length: Approx. 74.2 inches (1885 mm) Overall Width: Approx. 41.3 inches (1050 mm) Overall Height: Approx. 41.7 inches (1060 mm) Weights Dry Weight: Approx. 454 lbs (206 kg) Fuel Capacity: 3.1 US gal (11.7 L), including 0.8 US gal (3.0 L) reserve Wheels Tires Front Tire Size: AT25x8-12 Rear Tire Size: AT25x10-12 Wheel Bolt Pattern: 4x110 mm 🛡️ Safety Features Ratings Safety Ratings: N/A (ATVs typically do not have NHTSA or IIHS ratings) Active Features Braking System: Hydraulic disc brakes front and rear. Passive Features Lighting: Dual 30W halogen headlights, 8W taillight/stoplight. Warnings Operator Safety: Manual emphasizes wearing protective gear, adhering to safe riding practices, and understanding load limits. 💡 Technology Features Infotainment Infotainment System: N/A (Basic utility ATV) Driver Assistance Assistance Features: N/A Connectivity Connectivity Options: N/A Starting System Starting Method: Electric start, with a backup manual recoil starter. 🔧 Maintenance Service Intervals Oil Change...