🏷️ Basic Information

Make:

Yamaha

Model:

Wolverine 350

Model Code:

YFM35FX

Year Range Covered:

1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004

👋 Introduction

Market Position:

The Yamaha Wolverine 350 (YFM35FX) was a popular entry-level to mid-range utility ATV during its production run, known for its ruggedness and versatility for trail riding and light work. This manual serves as the definitive resource for maintaining and repairing these capable machines.

Competitors:

Competed with models from Honda (e.g., FourTrax 300/350), Suzuki (e.g., QuadRunner 300/350), and Kawasaki (e.g., Bayou 300/300). The Wolverine 350 offered a good balance of power, reliability, and features for its class.

Key Features:

This factory service manual provides in-depth, technician-level guidance, mirroring the information used by authorized Yamaha service centers. It is designed for comprehensive repair and maintenance, making it invaluable for owners looking to perform their own service or understand the intricacies of their ATV.

📋 Manual Details

Language:

English

Format:

PDF/ZIP Download

Page Count:

Not specified in product information, but factory service manuals for this era typically range from 300-600 pages.

Manual Type:

Factory Service Repair Manual

📖 Manual Coverage

Systems:

General Information, Specifications, Periodic Checks and Adjustments, Engine, Carburetion, Drivetrain, Chassis, Electrical, Troubleshooting

Procedures:

All repair procedures, routine maintenance, diagnostics, adjustments, disassembly, assembly, troubleshooting, electrical system diagnostics, carburetor tuning, drivetrain maintenance, chassis repair.

Depth:

Comprehensive factory-level repair and maintenance information suitable for DIY enthusiasts and professional mechanics. Covers from basic adjustments to complex engine and electrical system repairs.

📊 Manual Specifications

File Format:

PDF (requires unzipping software like WinRAR)

Print Quality:

Digital PDF, allowing for high-resolution viewing and printing.

Binding Type:

N/A (Digital Download)

Paper Type:

N/A (Digital Download)

⚙️ Engine Specifications

Engine Type:

Air-cooled, 4-stroke, SOHC, single-cylinder

Displacement:

348cc

Horsepower:

Approx. 20-25 HP (Estimate based on similar models of the era, specific figures may vary slightly by year and tuning).

Torque:

Not specified, but provides sufficient low-end torque for trail riding and moderate loads.

Fuel Delivery:

Carburetor (likely Mikuni BS34 or similar, specific carburetor model detailed in manual)

Ignition Type:

CDI (Capacitor Discharge Ignition)

Cooling Method:

Air-cooled

🔧 Transmission

Transmission Type:

5-speed constant mesh with reverse

Clutch Type:

Wet, multiple-disc

Drive System:

Shaft drive to rear wheels, often with a selectable 2WD/4WD system (depending on specific YFM35FX sub-model).

📐 Dimensions

Length:

Approx. 77.6 inches (1970 mm) (Varies slightly by year and sub-model, manual will have precise figures).

Width:

Approx. 42.1 inches (1070 mm) (Varies slightly by year and sub-model).

Height:

Approx. 42.9 inches (1090 mm) (Varies slightly by year and sub-model).

Dry Weight:

Approx. 540 lbs (245 kg) (Varies slightly by year and sub-model).

Fuel Capacity:

Approx. 3.2 US gal (12 Liters) (Manual will confirm exact capacity).

Towing Capacity:

Typically rated for around 700-1000 lbs (318-454 kg), but check specific model year for exact rating.

🛡️ Safety Features

Safety Ratings:

As an off-road vehicle, it does not undergo typical automotive crash safety ratings. Safety relies on rider skill and adherence to safe operating practices outlined in the owner's manual and this service manual.

Active Safety:

Front hydraulic disc brakes, rear drum or disc brake (depending on year/sub-model), stable chassis design for off-road stability.

Passive Safety:

Handguards, throttle limiter adjustment, integrated lighting system for visibility.

💡 Technology Features

Infotainment Features:

Basic ATV instrumentation: speedometer, odometer, neutral indicator, high-beam indicator, oil pressure warning lamp, reverse indicator. No advanced infotainment systems expected for this era.

Driver Assistance Features:

Limited to design features for stability and ease of operation. No electronic driver assistance systems like ABS or traction control.

Connectivity Features:

N/A

🔧 Maintenance

Oil Change Interval:

Typically every 1000 km or 6 months, whichever comes first (refer to manual for exact OEM recommendation).

Air Filter Cleaning:

Frequent checks, especially in dusty conditions. Cleaning/replacement intervals usually every 50-100 hours or as needed.

Spark Plug Replacement:

Typically every 6,000 km or as per manual recommendations.

Engine Oil Type:

Yamalube 4 (or equivalent SAE 10W-40 API SG or higher, JASO MA certified) - specific viscosity may vary with ambient temperature.

Engine Oil Capacity:

Approx. 1.8 L (1.9 US qt) (Refer to manual for exact capacity with filter change).

Coolant Type:

Not applicable (air-cooled engine).

Brake Fluid Type:

DOT 3 or DOT 4 (Manual will specify)

Common Issues:

Carburetor gumming due to fuel varnish, starter solenoid failure, rear axle bearing wear, occasional CDI unit issues, and normal wear and tear on suspension and drivetrain components.

Preventative Maintenance:

Regular cleaning of carburetor jets, proper fuel stabilizer usage during storage, consistent lubrication of suspension and drivetrain components, and timely replacement of wear items.

📚 Vehicle History

Brand Heritage:

Yamaha Motor Company has a long-standing reputation for producing high-quality, reliable powersports vehicles, including a strong lineage of ATVs known for their performance and durability.

Model Evolution:

The Wolverine 350 series was a significant model in Yamaha's ATV lineup, building on previous designs and offering a blend of utility and recreational capability. It paved the way for subsequent models in Yamaha's utility ATV range.

Production Years:

1995-2004 (as per manual coverage)

Manufacturing Location:

Primarily manufactured in Japan and/or the United States.

🏆 Awards & Recognition

Awards And Recognitions:

While specific industry awards for the YFM350FX are not widely documented, Yamaha ATVs of this period generally received positive reviews for reliability, durability, and value in the powersports media. This manual itself is a testament to the machine's intended serviceability and lifespan.