Segment:
All-Terrain Vehicle (ATV) - Utility/Recreational
Competitors:
Competes with similarly sized ATVs from manufacturers like Honda (e.g., FourTrax, Rancher), Suzuki (e.g., King Quad), and Kawasaki (e.g., Bayou, Prairie).
Versatility:
Designed for both recreational trail riding and utility tasks, with capabilities for both 2WD and 4x4 operation depending on the specific model variant.
Durability:
Yamaha's reputation for building robust and reliable off-road vehicles, indicated by the extended production run.
Engine:
Complete engine tear-down and rebuild, lubrication, ignition, starting, fuel system (carburetor/EFI), exhaust, cooling, internal components (piston, crankshaft, camshaft, valves).
Drivetrain:
Clutch, transmission, primary reduction gear, drive shaft, axles, gearshift mechanism, reverse gear.
Suspension And Steering:
Front forks, rear shock absorber(s), swingarm, steering system, linkages, bushings.
Brakes:
Front and rear brake systems (disc/drum depending on model variant), brake levers, pedals, calipers, pads, rotors, master cylinders, brake lines.
Electrical System:
Battery, charging system (stator, rectifier/regulator), starter motor, ignition system (coil, CDI, spark plug), lighting (headlights, taillights), switches, fuses, wiring diagrams.
Body And Frame:
Frame, fenders, plastics, seat, handlebars, storage, body panels, bodywork.
Maintenance:
Routine maintenance schedules, fluid changes (oil, coolant, brake fluid), filter replacements, lubrication points, spark plug inspection/replacement, tire pressure checks, battery maintenance.
Troubleshooting:
Diagnostic procedures for common issues, no-spark conditions, starting problems, engine performance issues, electrical faults, braking system malfunctions, suspension problems.
Repair And Rebuild:
Complete tear-down and reassembly procedures for all major components, including engine overhaul, transmission rebuild, carburetor/EFI tuning, suspension component replacement, brake system repair.
Technical Specifications:
Torque specifications for all fasteners, engine specifications (bore, stroke, compression ratio, displacement), fluid capacities, valve clearance specifications, tire specifications.
Depth:
Comprehensive, covering everything from basic owner maintenance to complete engine and transmission rebuilds, including detailed diagrams and illustrations.
Engine Type:
4-stroke, SOHC, air-cooled (typically)
Displacement:
Approximately 348cc (exact displacement may vary slightly by year/variant)
Bore X Stroke:
Specifics detailed in manual, typically around 83mm x 64.5mm
Compression Ratio:
Specifics detailed in manual, typically around 9.2:1
Horsepower:
Estimated 17-20 HP (Varies by model year and tuning)
Torque:
Specific torque figures detailed in manual
Fuel Delivery:
Carburetor (Mikuni BS32 or similar) for most models; some later models may have featured electronic fuel injection (EFI), but the manual covers carburetor primarily based on description.
Fuel Type:
Unleaded gasoline
Oil Type:
Yamalube (or equivalent) 4-stroke motorcycle/ATV oil, viscosity specified in manual (e.g., 10W-30, 20W-40).
Oil Capacity:
Specific capacity detailed in manual (typically around 1.5-2.0 quarts).
Type:
Automatic transmission with Ultramatic® clutch system (likely a continuously variable transmission - CVT).
Gear Selection:
Typically High, Low, Neutral, Reverse, Park.
Drive System:
Selectable 2WD/4WD with either shaft drive or chain drive to rear wheels, and possibly shaft drive to front wheels on 4x4 models.
Final Drive:
Chain drive (rear), Shaft drive (front on 4x4)
Length:
Specifics vary by year, generally around 74-78 inches.
Width:
Specifics vary by year, generally around 43-45 inches.
Height:
Specifics vary by year, generally around 42-44 inches.
Dry Weight:
Specifics vary by year and 2WD/4WD, generally around 500-550 lbs.
Ground Clearance:
Specifics vary by year, generally around 6-10 inches.
Towing Capacity:
Typically limited, check manual for specifics, often around 500-650 lbs.
Cargo Capacity:
Front/Rear racks, capacity specified in manual (e.g., 100 lbs front, 200 lbs rear).
Engine Oil Change:
Typically every 1000 km or 6 months, or as specified in the manual for specific conditions.
Air Filter Cleaning:
Recommended to check and clean at shorter intervals, especially in dusty conditions (e.g., every 20-40 operating hours).
Spark Plug Inspection:
Typically every 1000-2000 km or annually.
Valve Clearance Adjustment:
Periodic checks recommended, often every 5000 km or as per manual recommendations (critical for engine performance).
Engine Oil:
See 'engine_specs.primary_engine.lubrication.oil_type'.
Coolant:
If liquid-cooled variant exists, typically a 50/50 mix of ethylene glycol coolant and distilled water. Specifics in manual.
Brake Fluid:
DOT 3 or DOT 4 hydraulic brake fluid, as specified in manual.
Gear Oil:
Specific gear oil for final drive and transmission, as detailed in manual.
Carburetor Clogging:
Common with fuel sitting in the carburetor; requires regular cleaning and potentially stabilizer use.
Cvt Belt Wear:
The CVT belt can wear over time, leading to reduced performance or slipping. Manual provides inspection and replacement procedures.
Charging System Issues:
Stator or regulator/rectifier failure can lead to battery not charging. Diagnostic procedures are crucial.
Suspension Wear:
Bushings, seals, and shock components can wear with regular use, affecting ride quality and handling.
Manufacturer:
Yamaha Motor Company, renowned for its off-road vehicles, motorcycles, and marine products.
Development:
The Wolverine 350 evolved from earlier Yamaha utility ATV models, often featuring improvements in engine technology, suspension, and 4WD systems over its production run.
Manufacturing Origin:
Likely manufactured in Japan or North America.
