Category:
Sport Utility Vehicle (ATV) - Recreational
Competitors:
Honda FourTrax, Suzuki QuadSport, Kawasaki Bayou
Features:
Robust 348cc engine, selectable 2WD/4WD (later models), reliable shaft drive, comfortable suspension for its class
Users:
Recreational riders, trail riders, light utility work
Engine:
Disassembly, assembly, inspection, repair, tuning of the 348cc air-cooled engine
Fuel System:
Carburetor (Mikuni BSR33) adjustment, cleaning, overhaul, fuel tank, fuel pump
Cooling System:
Air cooling system components and inspection
Ignition System:
CDI, ignition coil, spark plug, timing verification
Exhaust System:
Muffler, exhaust pipe inspection and replacement
Transmission:
Clutch operation, gear shifting mechanism, lubrication
Drivetrain:
Shaft drive system, universal joints, differential inspection and maintenance
Suspension:
Front and rear suspension systems, shocks, springs, A-arms, linkages
Brakes:
Front and rear drum brake systems, brake shoe inspection, adjustment, hydraulic system (if applicable)
Steering:
Handlebar assembly, steering stem, tie rods, steering knuckle inspection and repair
Wheels Tires:
Wheel bearing inspection, tire pressure, tire replacement
Electrical System:
Wiring diagrams, lighting, starting system, charging system (stator, regulator/rectifier), battery maintenance
Frame Chassis:
Frame inspection for damage, welding repairs, component mounting points
Bodywork Plastics:
Fender, body panels, seat, rack inspection and removal/installation
Maintenance:
Regular maintenance checks, lubrication points, fluid changes, filter replacements
Troubleshooting:
Diagnostic charts for common problems, symptom-based solutions
Repair:
Step-by-step instructions for component removal, disassembly, inspection, repair, and reassembly
Adjustment:
Carburetor idle and mixture, brake free play, clutch cable
Disassembly Assembly:
Complete breakdown and reassembly procedures for major components
Torquing Specifications:
Critical fastener torque values for engine, chassis, and suspension components
Depth:
In-depth, factory-level repair and diagnostic information suitable for professional mechanics and advanced DIY enthusiasts
Engine Type:
4-stroke, SOHC, air-cooled, single-cylinder
Bore X Stroke:
83.0 mm x 64.5 mm
Ignition:
CDI (Capacitor Discharge Ignition)
Horsepower:
Estimated 20-22 HP (at crankshaft, manufacturer dependent)
Torque:
Estimated 20-22 lb-ft (at crankshaft, manufacturer dependent)
Carburetor Type:
Mikuni BSR33, single, slide-type
Fuel Capacity:
Approximately 3.3 gallons (12.5 liters), including reserve
Oil Type:
Yamalube 4 (or equivalent 10W-40 or 20W-40 API SG or higher, SE/SF may be acceptable based on manual)
Oil Capacity:
Approximately 1.7 Liters (1.8 US qt) without filter change, 1.9 Liters (2.0 US qt) with filter change
Plug Type:
NGK DPR7EA-9 (or equivalent)
Gap:
0.8 - 0.9 mm (0.031 - 0.035 in)
Type:
5-speed manual with automatic clutch (centrifugal clutch)
Gear Ratios:
Detailed ratios for each gear will be in the manual
Clutch Type:
Wet, multi-plate, automatic centrifugal clutch
Drive System:
Shaft drive to rear wheel, selectable 2WD/4WD (model specific, likely 4WD for Wolverine)
Transmission Fluid:
Yamalube Gear Oil (or equivalent SAE 80 hypoid gear oil)
Transmission Fluid Capacity:
Approximately 0.15 Liters (0.16 US qt)
Length:
Approximately 73.5 inches (186.7 cm)
Width:
Approximately 41.7 inches (105.9 cm)
Height:
Approximately 43.9 inches (111.5 cm)
Wheelbase:
Approximately 47.2 inches (119.9 cm)
Dry Weight:
Approximately 485 lbs (220 kg)
Ground Clearance:
Approximately 6.1 inches (15.5 cm)
Oil Change Interval:
Every 3,000 km (1,800 miles) or 6 months, whichever comes first (or as per manual recommendation)
Air Filter Cleaning:
Every 1,000 km (600 miles) or monthly, or as needed based on operating conditions
Spark Plug Inspection:
Every 2,000 km (1,200 miles) or annually
Valve Clearance Check:
Every 6,000 km (3,600 miles) or 2 years
Engine Oil Spec:
Yamalube 4 (or equivalent SAE 10W-40 or 20W-40 API SG or higher)
Gear Oil Spec:
Yamalube Gear Oil (or equivalent SAE 80 hypoid gear oil)
Brake Fluid Spec:
DOT 3 or DOT 4 brake fluid (ensure manual confirms for drum systems if any hydraulic components are present, usually for clutch/master cylinder if applicable)
Common Wear Items:
Brake shoes, wheel bearings, drive shaft U-joints, carburetor needle valve
Carburetor Fouling:
Can occur with infrequent use or poor fuel quality, requiring cleaning and adjustment.
Drivetrain Maintenance:
Regular greasing of U-joints and inspection of driveshaft boots is crucial.
