Segment Focus:
Mid-range recreational ATV market
Target User:
ATV enthusiasts, DIY mechanics, service technicians
Key Competitors:
Honda FourTrax, Suzuki King Quad, Polaris Sportsman (in similar displacement classes)
Manual Value Proposition:
Provides essential knowledge for maintaining and repairing the Wolverine 350, extending its lifespan and performance
Diagnostic Focus:
Emphasis on troubleshooting and repair procedures for common issues
Completeness Level:
Designed to be a comprehensive resource, covering all aspects of vehicle maintenance and repair
Covered Model Years:
2003, 2004, 2005, 2006, 2007, 2008, 2009
Estimated Page Count:
Extensive, typically 400+ pages for a comprehensive service manual
Manual Type:
Workshop/Service/Repair Manual
Engine Systems:
Engine disassembly, assembly, inspection, diagnosis, tuning, lubrication, cooling, fuel delivery, ignition system
Transmission And Drivetrain:
Clutch operation, transmission disassembly/assembly, differential servicing, shaft inspection, drive system maintenance
Suspension And Steering:
Front and rear suspension component inspection, replacement, shock absorber servicing, steering mechanism diagnosis and repair
Braking System:
Brake caliper maintenance, brake pad replacement, hydraulic system bleeding, rotor inspection, parking brake adjustment
Electrical System:
Wiring diagrams, lighting system troubleshooting, battery and charging system analysis, starter motor, ignition coil, CDI unit diagnosis
Chassis And Body:
Frame inspection, body panel removal/installation, seat, fenders, rack systems, floorboard servicing
Maintenance Procedures:
Routine servicing, oil changes, filter replacements, spark plug service, chain adjustment, lubrication points
Troubleshooting Guides:
System-specific diagnostic flowcharts, common problem identification and solutions
Repair Procedures:
Step-by-step instructions for component removal, installation, and rebuilding
Rebuilding Procedures:
Detailed instructions for engine, transmission, and carburetor rebuilding
Diagnostic Capabilities:
Comprehensive diagnostic procedures for all major systems, including electrical and engine performance
Repair Complexity:
Covers tasks ranging from basic maintenance to complex engine rebuilds and component overhauls
Specification Detail:
Includes detailed torque specifications, clearances, fluid capacities, and electrical resistance values
โ๏ธ Engine Specifications
Engine Type:
4-stroke, SOHC, 2-valve, Air-cooled
Engine Displacement:
348cc
Bore X Stroke:
83.0 mm x 64.5 mm
Horsepower Approximate:
Approx. 20-22 HP (at crankshaft, varies by year and tuning)
Torque Approximate:
Approx. 20-22 lb-ft (at crankshaft, varies)
Fuel Delivery System:
Carburetor
Carburetor Model:
Teikei Y24P (typical, may vary slightly)
Recommended Fuel:
Unleaded gasoline (Octane rating 87 or higher)
Oil Type:
Yamalube 4 (or equivalent SAE 10W-30 or 20W-40 API SG or higher, JASO MA compliant)
Oil Capacity:
Approx. 1.7 L (1.8 US qt) without filter change; 1.9 L (2.0 US qt) with filter change
Length:
Approx. 1970 mm (77.6 in)
Width:
Approx. 1150 mm (45.3 in)
Height:
Approx. 1135 mm (44.7 in)
Wheelbase:
Approx. 1220 mm (48.0 in)
Dry Weight:
Approx. 220 kg (485 lbs)
Curb Weight:
Approx. 236 kg (520 lbs) (including fully fueled and all standard equipment)
Towing Capacity:
Not specified for towing in most configurations, designed for rider and cargo
Safety Standard Focus:
Industry standards for ATVs, user operation and maintenance best practices
Braking System:
Hydraulic disc brakes (front and rear), parking brake
Engine Braking:
Engine braking provided by the Ultramatic transmission
Operator Safety:
Emphasis on proper riding gear and adherence to manual guidelines
Lighting:
Dual headlights, taillight/stoplight
Engine Oil Change:
Every 1000 km (600 mi) or 6 months, whichever comes first
Air Filter Cleaning:
Every 200 km (120 mi) or 1 month (more frequent in dusty conditions)
Spark Plug Check:
Every 2000 km (1200 mi) or 12 months
Valve Clearance Check:
Every 4000 km (2400 mi) or 24 months
Engine Oil Spec:
Yamalube 4 (or equivalent SAE 10W-30/20W-40 API SG/JASO MA)
Brake Fluid Spec:
DOT 3 or DOT 4 hydraulic brake fluid
Final Drive Oil Spec:
Yamalube Gear Oil (or equivalent SAE 80 API GL-4)
Common Wear Items:
Brake pads, wheel bearings, drive shaft U-joints, exhaust gaskets
Carburetor Maintenance:
Carburetor jetting can become clogged over time, requiring cleaning and adjustment
Starter Solenoid:
Occasional failure of the starter solenoid
Manufacturer:
Yamaha Motor Company
Heritage Focus:
Yamaha's extensive experience in powersports and engine development
Introduction Year:
Originally introduced in 1998 as the Big Bear 350, re-badged and refined as Wolverine 350
Key Updates:
Updates included revised styling, suspension tuning, and minor engine refinements over its production run
Production Period:
1998-2009 (as Big Bear 350/Wolverine 350)
Manufacturing Location:
Japan (primary manufacturing)
๐ Awards & Recognition
Model Reputation:
Praised for its ruggedness, reliability, and utility in its class
Consumer Satisfaction:
Generally high consumer satisfaction for its intended purpose as a workhorse ATV
Manufacturing Standards:
Built to Yamaha's rigorous quality and manufacturing standards
