Market Segment:
Utility/Recreational ATV
Competitors 1995:
Honda FourTrax 300, Suzuki QuadRunner 300, Kawasaki Bayou 300.
Wolverine 350 Key Features:
Reliable air-cooled engine, shaft drive, versatile for trail riding and light utility work.
Engine Systems:
Engine disassembly, assembly, lubrication, cooling, ignition, carburetion, exhaust.
Drivetrain Systems:
Transmission, clutch, driveshaft, differential, final drive, axle maintenance and repair.
Suspension Systems:
Front and rear suspension, shock absorbers, control arms, steering knuckle service.
Braking Systems:
Hydraulic brake system, caliper, master cylinder, brake lines, bleeding procedures.
Electrical Systems:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), lighting, ignition system components.
Fuel System:
Fuel tank, fuel lines, fuel filter, carburetor (Mikuni BS34) overhaul and adjustment.
Cooling System:
Air-cooled engine cooling principles, cylinder head and fin cleaning.
Frame And Body:
Frame inspection, body panel removal and installation, seat, fenders, racks.
Maintenance Procedures:
Regular inspections, lubrication points, filter changes, valve adjustments, chain tensioning.
Troubleshooting Guides:
Systematic diagnostic procedures for common and uncommon faults.
Repair Procedures:
Step-by-step instructions for component replacement and repair, from minor adjustments to major overhauls.
Rebuild Procedures:
Detailed instructions for rebuilding engine, transmission, and carburetor assemblies.
Torque Specifications:
Critical torque values for all fasteners and critical components.
Technical Depth:
Full factory service manual level, covering diagnostics, repair, and rebuilding for mechanics and experienced enthusiasts.
Engine Type:
Four-stroke, SOHC, single-cylinder
Engine Displacement:
348cc
Bore X Stroke:
82.0 mm x 64.5 mm
Cooling System:
Air-cooled
Estimated Horsepower:
18 hp @ 5500 rpm (approximate, varies slightly)
Estimated Torque:
20.5 lb-ft @ 4000 rpm (approximate, varies slightly)
Carburetor Type:
Mikuni BS34
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
3.2 US gallons (12 liters)
Ignition System:
CDI (Capacitor Discharge Ignition)
Oil Type Recommendation:
Yamalube 4 (or equivalent API SG, SAE 10W-40)
Oil Capacity With Filter Change:
1.9 US quarts (1.8 liters)
Transmission Type:
5-speed manual with reverse
Drive System:
Shaft drive (2WD)
Clutch Type:
Wet, multi-plate manual clutch
Gear Ratios:
Detailed in manual (e.g., 1st: 3.273, 2nd: 2.125, 3rd: 1.550, 4th: 1.250, 5th: 1.045, Reverse: 2.500)
Transmission Oil Type Recommendation:
Yamalube Gear Oil (or equivalent SAE 80 API GL-4)
Transmission Oil Capacity:
0.58 US quarts (0.55 liters)
Atv Safety Considerations:
All ATVs, including the Wolverine 350, require proper training and protective gear. Always ride responsibly and follow manufacturer safety guidelines.
Braking System Description:
Hydraulic disc brakes front and rear for reliable stopping power.
Lighting System:
Dual headlights, taillight/brake light for visibility.
Engine Oil Change Interval:
Every 1000 km (600 miles) or 6 months.
Air Filter Cleaning Interval:
Every 500 km (300 miles) or as needed based on operating conditions.
Spark Plug Replacement Interval:
Every 3000 km (1800 miles) or inspect every 1000 km (600 miles).
Valve Clearance Check Interval:
Every 2000 km (1200 miles).
Brake Fluid Type:
DOT 3 or DOT 4
Common Wear Items:
Carburetor jetting, brake pads, swingarm bushings, wheel bearings.
Carburetor Issues:
Can be prone to clogging if fuel is not kept clean; requires periodic cleaning and adjustment.
Yamaha Powersports Heritage:
Yamaha has a long-standing reputation for producing reliable and performance-oriented powersports vehicles since the mid-20th century.
Wolverine Line Introduction:
The Wolverine series, known for its utility and trail capabilities, has been a cornerstone of Yamaha's ATV lineup, evolving from earlier models like the Moto-4.
Wolverine 350 Production Years:
The YFM350 Wolverine was produced through the late 1990s and early 2000s in various iterations.
