Model Variant:
All Models
Product Type:
Workshop Service Repair Manual
Product Format:
PDF Download
Production Years Covered:
2003, 2004, 2005, 2006, 2007, 2008, 2009
Chassis Codes:
YFM350X (Specific codes may vary slightly by year, consult manual for exact VIN decoding)
Vehicle Segment:
Sport ATV / Utility ATV Crossover
Target Audience:
Off-road enthusiasts, recreational riders, utility users
Key Competitors:
Honda TRX350 Rancher, Suzuki LT-F300 King Quad, Kawasaki Bayou 300
Model Positioning:
The Yamaha Wolverine 350 was positioned as a capable and reliable all-terrain vehicle, offering a blend of sport and utility features for its era.
Manual Value Proposition:
Provides comprehensive, instant access to all necessary repair and maintenance data, enabling owners and technicians to maintain and service the Wolverine 350 effectively.
Engine Systems:
Engine disassembly, assembly, lubrication system, cooling system, fuel system, ignition system, exhaust system, performance tuning
Transmission Drivetrain:
Clutch system, transmission disassembly and assembly, final drive, drive shafts, differentials (if applicable), lubrication
Chassis Suspension:
Frame, suspension system (front and rear), steering system, wheel bearings, shock absorbers, swingarm
Braking System:
Front and rear brake systems (hydraulic, disc brakes), master cylinders, brake calipers, brake lines, parking brake
Electrical System:
Wiring diagrams, lighting system, battery, charging system (stator, regulator/rectifier), ignition switch, starter motor, fuses, relays, instrumentation
Fuel System:
Carburetor (model and jetting specifics), fuel pump (if applicable), fuel lines, fuel tank, fuel filter
Body Frame:
Body panels, fenders, seat, handlebars, footpegs, chassis components, decals
Maintenance Procedures:
Regular inspections, lubrication points, filter replacement (oil, air), spark plug replacement, valve clearance adjustment, carburetor cleaning and adjustment
Diagnostic Procedures:
Troubleshooting guides for common problems, symptom-based diagnostics, diagnostic flowcharts, electrical system diagnostics
Repair Procedures:
Step-by-step repair instructions for all major components, component removal and installation, torque specifications for fasteners
Overhaul Procedures:
Complete engine overhaul, transmission rebuild, carburetor overhaul
Diagnostic Detail:
Advanced diagnostic procedures for electrical and mechanical systems, including troubleshooting specific fault codes or symptoms.
Repair Detail:
Detailed step-by-step instructions with clear diagrams and specifications for component removal, repair, and reassembly.
Specification Detail:
Includes all essential technical specifications, torque values, clearances, fluid capacities, and tolerances.
Engine Type:
Four-stroke, SOHC, air-cooled
Engine Displacement:
348cc
Bore X Stroke:
83.0 mm x 64.5 mm
Compression Ratio:
9.7:1 (Typical, confirm specific year in manual)
Horsepower Output:
Approx. 21-23 HP (Varies slightly by year and tuning)
Torque Output:
Approx. 27-29 Nm (Varies slightly by year and tuning)
Carburetor Type:
Mikuni BSR33 (Single)
Fuel Type:
Unleaded Gasoline (Octane rating typically 87 or higher)
Ignition Type:
CDI (Capacitor Discharge Ignition)
Safety Certifications:
Designed to meet applicable industry safety standards for ATVs (e.g., ANSI/SVIA standards). Consult manual for specific certifications.
Braking System Type:
Hydraulic disc brakes (Front and Rear)
Parking Brake:
Yes (Typically hand-lever operated)
Lighting:
Dual headlights, taillight/brake light
Throttle Limiter:
Often adjustable throttle stop for novice riders (check manual for adjustment procedures)
Engine Oil Change:
Every 100 hours or 6 months (whichever comes first) - Consult manual for exact recommendation and filter type.
Air Filter Cleaning:
Every 30 hours or before/after each ride in dusty conditions. Replace as needed.
Spark Plug Replacement:
Every 100 hours or annually. Check gap regularly.
Valve Clearance Check:
Every 100 hours or annually. Consult manual for exact specifications.
Engine Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 API SG or higher.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Grease Type:
General purpose lithium-based grease for lubrication points.
Common Wear Items:
Brake pads, tires, drive chain/belt (if applicable), suspension bushings, wheel bearings, carburetor jets (clogging).
Carburetor Performance:
Can be susceptible to gumming if fuel sits for extended periods; regular cleaning recommended.
Suspension Wear:
Bushings and seals can wear over time, leading to play in suspension components.
Manufacturer:
Yamaha Motor Company, Ltd., a renowned Japanese manufacturer with a long history in motorcycles, ATVs, and marine products.
Lineage:
The Wolverine line is part of Yamaha's broader ATV development, building on their expertise in robust and reliable off-road vehicles.
Production Location:
Primarily manufactured in Japan or by Yamaha's global manufacturing facilities.
