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.
        
     
    
    
        
            Competitors:
        
        
            Competed with models like the Honda FourTrax 300/350, Suzuki QuadRunner 300/350, and Kawasaki Bayou 300/300.
        
     
    
    
        
            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.
        
     
 
    
    
    
        
            General Coverage:
        
        
            Comprehensive repair and maintenance for the 2001 Yamaha Wolverine 350.
        
     
    
        
            Specific Systems:
        
        
            Engine, drivetrain, suspension, brakes, electrical, chassis, bodywork, and more.
        
     
    
    
    
    
        
            Type:
        
        
            Factory Service Manual / Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            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.
        
     
    
    
        
            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.
        
     
    
    
        
            Depth:
        
        
            Comprehensive, covering basic maintenance to advanced engine rebuilding and electrical system diagnostics.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Four-stroke, SOHC, air-cooled
        
     
    
    
        
            Bore X Stroke:
        
        
            83.0 mm x 64.5 mm
        
     
    
    
    
        
            Horsepower:
        
        
            Approximately 19-20 HP (estimated, actual may vary)
        
     
    
        
            Torque:
        
        
            Not explicitly stated in product info, but robust for its class.
        
     
    
    
        
            Carburetor Model:
        
        
            Mikuni BS34
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline, minimum 87 octane
        
     
    
    
        
            Engine Oil Type:
        
        
            Yamalube 4 (or equivalent) SAE 20W-40 or SAE 10W-30 API SE, SF, SG, SH, SJ, or higher
        
     
 
    
    
    
        
            Overall Length:
        
        
            Approx. 74.2 inches (1885 mm)
        
     
    
        
            Overall Width:
        
        
            Approx. 41.3 inches (1050 mm)
        
     
    
        
            Overall Height:
        
        
            Approx. 41.7 inches (1060 mm)
        
     
    
    
        
            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
        
     
    
    
        
            Front Tire Size:
        
        
            AT25x8-12
        
     
    
        
            Rear Tire Size:
        
        
            AT25x10-12
        
     
    
        
            Wheel Bolt Pattern:
        
        
            4x110 mm
        
     
 
    
    
    
        
            Safety Ratings:
        
        
            N/A (ATVs typically do not have NHTSA or IIHS ratings)
        
     
    
    
        
            Braking System:
        
        
            Hydraulic disc brakes front and rear.
        
     
    
    
        
            Lighting:
        
        
            Dual 30W halogen headlights, 8W taillight/stoplight.
        
     
    
    
        
            Operator Safety:
        
        
            Manual emphasizes wearing protective gear, adhering to safe riding practices, and understanding load limits.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 1000 km (600 miles) or 6 months, whichever comes first.
        
     
    
        
            Air Filter Cleaning:
        
        
            Every 500 km (300 miles) or as needed based on operating conditions.
        
     
    
        
            Spark Plug Replacement:
        
        
            Recommended every 5000 km (3000 miles) or when fouled.
        
     
    
    
        
            Coolant Type:
        
        
            N/A (Air-cooled engine)
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 3 or DOT 4.
        
     
    
    
        
            Common Wear Items:
        
        
            Brake pads, drive shaft U-joints, carburetor jets (clogging), and battery terminals can be common wear items.
        
     
    
        
            Maintenance Tips:
        
        
            Regular cleaning of the air filter and carburetor bowl is crucial for optimal performance, especially in dusty conditions.
        
     
 
    
    
    
        
            Yamaha Atv Legacy:
        
        
            Yamaha has a long history of innovation in the ATV market, pioneering many features and configurations.
        
     
    
    
        
            Wolverine Lineage:
        
        
            The Wolverine 350 was part of Yamaha's successful line of utility ATVs, building upon earlier models and evolving into more advanced versions.
        
     
    
    
        
            Production Period:
        
        
            The YFM350X was produced for many years, with the 2001 model representing a mature iteration of the platform.