Segment:
Mid-size utility ATV
Target Audience:
Recreational riders, utility users, DIY mechanics
Competitors:
Honda FourTrax 300/350, Suzuki QuadRunner 250/300, Kawasaki Bayou 300
Vehicle Highlights:
Reliable 4x4 system, torquey single-cylinder engine, comfortable suspension for its class, durable construction
Manual Value Proposition:
Empowers owners to perform comprehensive maintenance and repairs, saving significant costs compared to professional services. Provides deep understanding of vehicle systems.
Applicable Years:
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Specific Models Covered:
YFM350FXG, YFM350FXH, YFM350FXJ, YFM350FXK, YFM350FXL, YFM350FXM, YFM350FXN, YFM350FXP, YFM350FXR, YFM350FXS
Estimated Pages:
Extensive (typical factory service manuals for this era are 300-600+ pages)
Type:
Factory Service Manual / Workshop Manual
File Format:
PDF Download
Delivery Method:
Download
Requirements:
PDF Reader, Compression Utility (e.g., 7-zip) if archived
Major Systems:
Engine, Cooling System, Carburetion, Chassis, Electrical System, Drivetrain, Suspension, Brakes, Steering
Maintenance:
Scheduled Inspections, Adjustments, Lubrication, Fluid Changes, Filter Replacements, Spark Plug Service, Tire Pressure Checks
Repair:
Engine Overhaul (top-end and potentially bottom-end), Carburetor Rebuild, Suspension Component Replacement, Brake System Service, Electrical Component Diagnosis and Repair, Drive Clutch and Driven Clutch Service, Shaft Drive Maintenance
Diagnostics:
Troubleshooting charts for common problems, electrical system diagnostics, engine performance issues
Removal Installation:
Removal and installation of major components such as engine, transmission, wheels, suspension arms, body panels, electrical parts
Depth:
Comprehensive, covering everything from basic maintenance to complete component overhauls and detailed troubleshooting
Documentation Type:
Includes illustrations, photographs, and diagrams for part identification and assembly guidance
Engine Type:
4-stroke, SOHC, Air-Cooled
Bore X Stroke:
83.0 mm x 64.5 mm (typical for this engine family)
Compression Ratio:
Approximately 9.2:1 (check manual for exact spec)
Horsepower:
Around 20-23 HP (estimated, varies by year and tuning)
Torque:
Around 20-22 lb-ft (estimated)
Carburetion:
Mikuni VM Series (e.g., VM34 or similar downdraft carburetor) - specific model detailed in manual
Fuel Type:
Unleaded gasoline, 87 octane (minimum)
Fuel Capacity:
Approximately 3.2 US gallons (including reserve)
Oil Type:
Yamaha specifies specific API SG or higher, SAE 10W-30 or 20W-40. Consult manual for exact viscosity based on ambient temperature.
Oil Capacity:
Approximately 1.8 US quarts (1.7 liters) with filter change.
Transmission Type:
Constant mesh, 5-speed with manual clutch and reverse
Clutch Type:
Wet, multiple-disc
Drive System:
Shaft drive, On-demand 4WD
Gear Ratios:
Detailed gear ratios for each speed will be found within the manual's specifications section.
Transmission Fluid:
Yamalube SAE 80W API GL-4 hypoid gear oil, or equivalent.
Length:
Approximately 74.4 inches (1890 mm)
Width:
Approximately 40.8 inches (1035 mm)
Height:
Approximately 42.1 inches (1070 mm)
Wheelbase:
Approximately 48.4 inches (1230 mm)
Dry Weight:
Approximately 507 lbs (230 kg)
Curb Weight:
Approximately 533 lbs (242 kg) (estimated with fluids)
Front Rack Capacity:
Typically rated around 45 kg (99 lbs)
Rear Rack Capacity:
Typically rated around 85 kg (187 lbs)
Atv Safety Standards:
Designed to meet ANSI standards for recreational ATVs. Refer to manual for specific safety warnings and operational guidelines.
Braking System:
Hydraulic disc brakes on front and rear, often with dual front discs and single rear disc. Specific configurations detailed in manual.
Lighting:
Dual headlights, taillight/brake light
Handlebars:
Sturdy handlebars with protective grips
Footwells:
Wide, rugged footwells with serrated pegs for grip
Oil Change:
Every 1000 km (600 miles) or 6 months, whichever comes first. Inspect oil level more frequently.
Air Filter:
Clean every 500 km (300 miles) or more often in dusty conditions. Replace as needed.
Spark Plug:
Inspect every 1000 km (600 miles), replace as needed. Recommended plug: NGK CR7E or similar.
Valve Clearance:
Inspect every 4000 km (2500 miles) or 24 months. Specific clearances provided in manual.
Engine Oil Viscosity:
SAE 10W-30 or 20W-40 (temperature dependent)
Transmission Oil Type:
SAE 80W API GL-4 hypoid gear oil
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid
Coolant:
High-quality ethylene glycol-based antifreeze mixed with distilled water (50/50 ratio)
Common Wear Items:
CV joint boots, brake pads, wheel bearings, drive belts (on some clutch systems, though Wolverine uses centrifugal clutch), carburetor jetting issues due to ethanol fuels.
Potential Failures:
Carburetor cleaning/rebuilding is common due to age and fuel variability. Ignition system components (coil, CDI) can fail over time.
Manufacturer:
Yamaha Motor Corporation, a global leader in motorcycles, marine products, and powersports vehicles.
Introduction Year:
The Wolverine line, particularly the 350cc variant, has roots in Yamaha's established ATV lineage, offering a balance of performance and utility.
Key Changes Within Era:
Minor updates to styling, plastics, and potentially suspension tuning over the 1995-2004 production run. The core mechanicals remained largely consistent.
Manufacturing Location:
Primarily Japan, though assembly could occur in other Yamaha facilities globally.
