Vehicle Segment:
Utility All-Terrain Vehicle (ATV)
Key Market Appeal:
Reliability, 4x4 capability, versatility for recreational and light utility use
Competitors:
Honda FourTrax 300/350, Kawasaki Bayou 300/360, Suzuki QuadSport 250/300, Polaris Sportsman 300/335
Vehicle Selling Points:
Rugged 4x4 system, proven air-cooled engine, independent front suspension (IFS), comfortable ride, durability
Benefit Statement:
Inexpensive way to keep your vehicle working properly, empowering owners for self-maintenance and repair
Content Value:
Detailed illustrations and step-by-step instructions for efficient and accurate service
Vehicle Years:
1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
Vehicle Models Covered:
YFM350FX Wolverine (4x4)
Estimated Pages:
Hundreds (specific count not provided, but described as '100 percents complete and intact' with 'hundreds of photos and illustrations')
Type:
Workshop Service Repair Manual
Engine:
Complete engine overhaul, disassembly, inspection, assembly, troubleshooting, tuning
Transmission:
Clutch, gearbox, drive shafts, differentials (front and rear), operation, maintenance, repair
Chassis And Suspension:
Frame, front and rear suspension, shock absorbers, steering system, wheel alignment
Brakes:
Hydraulic system, calipers, master cylinder, brake lines, parking brake, bleeding procedures
Electrical System:
Ignition system, charging system (stator, regulator/rectifier), starter motor, battery, lighting, wiring diagrams, switches, fuses
Fuel System:
Carburetor (Mikuni), fuel pump, fuel lines, fuel tank, air filter maintenance
Cooling System:
Air cooling system design and maintenance
Body And Plastics:
Body panels, fenders, seat, handlebars, storage compartment
Drive Train:
Axles, CV joints, drive system for 4x4 engagement
Maintenance:
Regular scheduled maintenance, oil changes, filter replacements, lubrication, brake checks, tire pressure
Troubleshooting:
Diagnostic procedures for common problems, symptom analysis, step-by-step fault finding
Repair:
Detailed instructions for component disassembly, repair, and reassembly
Rebuilds:
Complete engine, transmission, and carburetor rebuild procedures
Adjustment:
Carburetor tuning, valve clearance adjustments, brake lever and cable adjustments
Installation:
Guidance for replacing major components and accessories
Depth:
Comprehensive, from basic maintenance to complete engine rebuilds and advanced diagnostics
Detail Level:
Factory-level detail with step-by-step instructions and photographic guidance
Target Audience:
Both DIY enthusiasts and professional mechanics
Engine Type:
4-stroke, SOHC, air-cooled
Bore X Stroke:
83.0 mm x 64.5 mm
Valve Clearance Intake:
0.08 - 0.12 mm (cold)
Valve Clearance Exhaust:
0.13 - 0.17 mm (cold)
Horsepower:
Approximately 18-20 HP (estimated, specific figures not in product description)
Torque:
Not specified in product description
Carburetor Type:
Mikuni BSR33 (single)
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Approx. 3.2 US gal (12 Liters)
Engine Oil Type:
Yamalube 4, SAE 20W-40 (or equivalent API SE, SF or SG service classification)
Engine Oil Capacity:
1.80 L (1.9 US qt), 2.00 L (2.1 US qt) with filter change
Safety Ratings:
N/A (ATVs are not typically rated by government safety bodies like NHTSA for passenger vehicles)
Braking System:
Hydraulic disc brakes front and rear, sealed drum brake (rear parking)
Tire Specifications Front:
AT25x8-12
Tire Specifications Rear:
AT25x10-12
Lighting:
Dual halogen headlights, taillight/brake light
Handlebars:
Contoured handlebars with padded center
Engine Oil Change:
Every 3000 km or 12 months (whichever comes first), or more frequently under severe use.
Spark Plug Replacement:
Every 6000 km or 24 months.
Air Filter Cleaning:
Every 1000 km (more often in dusty conditions).
Valve Clearance Check:
Every 6000 km or 24 months.
Transmission Oil Change:
Every 6000 km or 24 months.
Brake Fluid:
DOT 3 or DOT 4 brake fluid
Coolant:
N/A (Air-cooled engine)
Common Wear Items:
CV joint boots, wheel bearings, brake pads, starter motor brushes
Carburetor Issues:
Potential for jetting issues with aftermarket exhaust/air filter modifications, pilot jet clogging if fuel is left sitting for extended periods.
4X4 System:
Proper maintenance of the 4x4 engagement mechanism is crucial; occasional issues with the actuator or linkage can occur if not serviced.
Manufacturer Specialty:
Yamaha Motor Company is renowned for its high-performance motorcycles, marine products, and powersports vehicles, known for engineering innovation and reliability.
Wolverine Lineage:
The YFM350FX Wolverine was a popular mid-size utility ATV in Yamaha's lineup, offering a balance of performance, 4x4 capability, and comfort.
Key Innovations For Era:
Independent Front Suspension (IFS) offered a significant improvement in ride quality and handling over solid-axle designs prevalent at the time.
Production Period:
1995-2004
Manufacturing Location:
Primarily Japan (Yamaha facilities)