Market Segment:
Mid-size utility ATV, popular for recreational trail riding and general off-road use.
Competitors:
Honda FourTrax 300/350, Suzuki QuadRunner 300, Kawasaki Bayou 300.
Features:
Shaft drive, comfortable suspension, reliable air-cooled engine, proven durability.
Applicable Years:
2003, 2004, 2005, 2006, 2007, 2008, 2009
Vehicle Type:
All-Terrain Vehicle (ATV)
Page Count:
Estimated 400+
Manual Type:
Workshop Repair Service Manual
Engine:
Complete engine overhaul, troubleshooting, diagnostics, carburetor, ignition system, cooling system.
Transmission:
Clutch, gearbox, drive shafts, lubrication.
Suspension:
Front and rear suspension, shock absorbers, control arms, steering linkage.
Brakes:
Hydraulic brake system, master cylinder, calipers, brake lines, bleeding procedures.
Electrical:
Wiring diagrams, lighting system, battery, starter, charging system, ignition coils, CDI unit.
Fuel System:
Fuel tank, fuel lines, fuel filter, carburetor tuning and rebuilding.
Chassis:
Frame, bodywork, fenders, seat, handlebars, footpegs.
Wheels And Tires:
Wheel bearing maintenance, tire pressure specifications.
Drive System:
Final drive, differential (if applicable to specific sub-models), shaft and U-joints.
Cooling System:
Engine oil cooling (oil cooler and lines).
Exhaust System:
Muffler, exhaust pipe, heat shields.
Maintenance:
Routine maintenance, oil changes, filter replacements, spark plug checks, lubrication points.
Troubleshooting:
Diagnostic charts for common problems and their solutions.
Repair:
Detailed step-by-step repair procedures for all major components.
Rebuilding:
Complete rebuilding procedures for engine, transmission, and carburetor.
Diagnostics:
Troubleshooting guides, fault finding techniques.
Torque Specifications:
Includes critical torque values for engine, chassis, and suspension components.
Depth:
Comprehensive (from basic maintenance to full engine rebuilds and electrical diagnostics).
Diagnostic Tools:
Covers procedures requiring basic hand tools, torque wrenches, and potentially a multimeter for electrical diagnostics.
Manual Scope:
Comprehensive service and repair procedures for all mechanical and electrical systems.
Engine Type:
4-stroke, SOHC, air-cooled, 2-valve
Bore X Stroke:
83 mm x 64.5 mm
Carburetor:
Mikuni BNS32 (single)
Horsepower:
Approx. 20-22 HP (estimated)
Torque:
Approx. 20-22 lb-ft (estimated)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
3.4 US gal (12.9 L)
Ignition System:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air-cooled
Engine Oil Change:
Every 1,000 km (600 miles) or 6 months.
Spark Plug Check:
Every 1,000 km (600 miles).
Air Filter Cleaning:
Every 1,000 km (600 miles), or more frequently in dusty conditions.
Gear Oil Change:
Every 2,000 km (1,200 miles) or 12 months.
Engine Oil Capacity:
1.8 L (1.9 US qt) without filter change; 1.9 L (2.0 US qt) with filter change.
Transmission Oil Capacity:
0.65 L (0.69 US qt).
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
Brake pads, wheel bearings, tie rod ends, rear shock absorber bushings.
Carburetor Issues:
Can be prone to clogging if fuel is not kept clean; jetting may need adjustment for altitude or modifications.
Electrical Gremlins:
Older models can sometimes develop issues with starter solenoids or stator windings if not properly maintained.
Heritage:
Yamaha is a globally recognized manufacturer with a long history in motorsports and powersports, known for innovation and reliability.
Model Lineage:
The Wolverine line evolved from earlier Yamaha utility ATVs, emphasizing comfort and trail capability. The 350 model was a significant player in the mid-size segment.
Production Period:
The Wolverine 350 was produced by Yamaha from approximately 2003 to 2009, with minor updates during its lifespan.
Manufacturing:
Primarily manufactured in Japan and/or by Yamaha's global subsidiaries.