Model:
Wolverine 350 / 400
Vehicle Type:
All-Terrain Vehicle (ATV)
Production Years Covered:
2003, 2004, 2005, 2006, 2007, 2008, 2009
Target User:
Owners, technicians, and repair shops working on Yamaha Wolverine 350 and 400 ATVs.
Value Proposition:
Provides essential information for maintaining and repairing these specific Yamaha ATV models, crucial for longevity and performance.
Manual Benefit:
Empowers users with the knowledge to perform accurate diagnostics, repairs, and routine maintenance, saving time and money.
Primary Focus:
Service, Repair, Maintenance, Troubleshooting, Diagnostics
Estimated Page Count:
Detailed comprehensive coverage likely exceeding 500 pages (typical for complete workshop manuals).
Type:
Complete Workshop Service Repair Manual
Engine:
Engine disassembly, assembly, tuning, troubleshooting, lubrication, cooling system, fuel system (carburetor, fuel pump, lines), ignition system, exhaust system.
Transmission:
Clutch operation, gearbox overhaul, drive shaft, differential (if applicable), maintenance, troubleshooting.
Chassis And Suspension:
Frame, front suspension (shocks, A-arms), rear suspension (swingarm, shocks), steering system, wheel bearings, alignment.
Brakes:
Hydraulic system, brake pads, rotors, calipers, lines, master cylinder, bleeding procedures, troubleshooting.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starter motor, lighting, ignition switch, fuses, relays, troubleshooting electrical faults.
Body And Trim:
Fenders, plastics, seat, handlebars, controls, graphics, disassembly, reassembly.
Routine Maintenance:
Oil changes, filter replacements, spark plug service, chain adjustment, air filter cleaning/replacement, brake adjustments, lubrication points.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension component replacement, electrical system diagnosis and repair.
Troubleshooting Guides:
Step-by-step diagnostic procedures for common and uncommon issues, fault identification.
Technical Specifications:
Torque values, clearances, fluid capacities, electrical resistance values, engine specifications.
Depth:
Comprehensive, suitable for professional mechanics and experienced DIY enthusiasts. Covers complete disassembly and reassembly of all major components.
Engine Type 350:
348cc, Air-cooled, SOHC, 4-stroke, Single-cylinder
Engine Type 400:
382cc, Air-cooled, SOHC, 4-stroke, Single-cylinder (Note: Some sources indicate a 382cc for '400' models, often variations of the 350 architecture).
Bore Stroke 350 Approx:
Approx. 83.0 mm x 64.5 mm
Bore Stroke 400 Approx:
Approx. 84.5 mm x 70.0 mm
Carburetor Type:
Mikuni Carburetor (Specific model varies by year and market, typically a VM series).
Fuel Type:
Unleaded gasoline
Ignition Type:
CDI (Capacitor Discharge Ignition)
Cooling Method:
Air-cooled with an oil cooler (common)
Display Features:
Basic instrumentation: speedometer, odometer, fuel gauge (may be basic), neutral indicator, high-beam indicator.
Assistance Systems:
Primarily mechanical systems. No advanced electronic driver assistance features typical of modern vehicles.
Connectivity Features:
N/A (No onboard connectivity features).
Engine Oil Change:
Typically every 1000 km or 6 months, whichever comes first (refer to manual for precise interval).
Spark Plug Service:
Recommended inspection and cleaning/replacement at specified intervals, e.g., every 6 months or 2000 km.
Air Filter Maintenance:
Regular inspection and cleaning, especially in dusty conditions. Replacement as needed.
Engine Oil Type:
Yamalube 4 (or equivalent API SG, SAE 10W-40 or 20W-40, JASO MA).
Engine Oil Capacity:
Approx. 1.8 - 2.0 Liters (refer to manual for exact capacity with/without filter change).
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Gear Oil Type:
Yamalube Gear Oil (or equivalent SAE 80 hypoid gear oil).
Common Wear Items:
Brake pads and rotors, wheel bearings, drive chain and sprockets (if applicable to specific drivetrain configuration), suspension bushings, starter motor brushes.
Carburetor Issues:
Can be prone to clogging from stale fuel or debris, requiring cleaning and adjustment.
Electrical Gremlins:
As with many ATVs of this age, wiring connections and grounds can degrade, leading to intermittent electrical issues.
Yamaha Atv Legacy:
Yamaha has a long-standing reputation for producing reliable and capable ATVs since the late 1970s. The Wolverine line is known for its utility and trail-riding capabilities.
Wolverine Lineage:
The Wolverine series has seen various iterations, with the 350 and 400 models representing a popular segment of utility-focused, mid-size ATVs.
Manufacturing Origin:
Primarily manufactured by Yamaha Motor Corporation, likely in Japan or its international facilities.