Vehicle Segment:
Sport/Recreational ATV (All-Terrain Vehicle)
Target Audience:
Enthusiasts seeking off-road trail riding, recreational use, and moderate utility.
Key Competitors Era:
Honda TRX300EX/400EX, Suzuki LT-Z400, Kawasaki KFX400, Polaris Sportsman 335/400.
Engine Type:
Air-cooled, SOHC, 4-stroke engine.
Drivetrain:
Shaft drive, 2WD (Rear-wheel drive).
Suspension Design:
Independent front suspension (IFS) and Swingarm rear suspension.
Transmission:
Manual transmission with a centrifugal clutch (automatic clutch engagement).
Engine System:
Engine disassembly, assembly, inspection, tuning, valve adjustment, carburetor service, cooling system.
Transmission System:
Clutch operation, gearbox inspection, maintenance, and repair.
Chassis Suspension Steering:
Front and rear suspension components, shock absorbers, bushings, steering system maintenance and repair.
Braking System:
Brake caliper service, hydraulic lines, brake fluid replacement, adjustments.
Electrical System:
Ignition system, lighting, charging system, starter motor, wiring diagrams, troubleshooting.
Fuel System:
Fuel tank, fuel lines, carburetor cleaning and adjustment, fuel pump (if applicable).
Exhaust System:
Muffler, exhaust pipe inspection and replacement.
Frame Body:
Frame inspection, body panel removal and installation, plastics.
Maintenance:
Routine service, oil changes, filter replacements, lubrication, chain adjustment.
Repair:
Component disassembly, reassembly, part replacement, and adjustment for all major systems.
Troubleshooting:
Diagnostic procedures for common and uncommon issues, error codes, and problem identification.
Installation Removal:
Step-by-step instructions for removing and installing all major components.
Diagnostic Capabilities:
Detailed diagnostic trees and component testing procedures for accurate fault finding.
Rebuild Instructions:
Complete engine and transmission rebuild procedures with torque specifications and tolerances.
Technical Data Accuracy:
Factory-accurate specifications, tolerances, and measurements for all parts and assemblies.
PDF Quality:
High-resolution, typically searchable PDF with clear diagrams.
Print Readability:
Designed for clear printing with well-defined diagrams and text.
Digital Format:
N/A (Digital PDF download)
Digital Format:
N/A (Digital PDF download)
Engine Type:
4-stroke, SOHC, 2-valve, air-cooled
Bore X Stroke:
83.0 mm x 64.5 mm
Horsepower:
Approx. 20-22 HP (Varies slightly by specific tuning and measurement)
Torque:
Approx. 20-22 lb-ft (Varies slightly by specific tuning and measurement)
Carburetor Type:
Mikuni BS34 (or similar 34mm constant velocity carburetor)
Fuel Type:
Unleaded gasoline, 87 octane (minimum)
Fuel Capacity:
2.6 US gal (9.8 L), including 0.7 US gal (2.6 L) reserve
Length:
Approx. 70.7 in (1795 mm)
Width:
Approx. 43.7 in (1110 mm)
Height:
Approx. 43.0 in (1092 mm)
Wheelbase:
Approx. 49.2 in (1250 mm)
Dry Weight:
Approx. 478 lbs (217 kg)
Curb Weight:
Approx. 518 lbs (235 kg) (with all necessary fluids)
Rack Capacity Front:
Not officially specified as a cargo rack, but designed for utility.
Rack Capacity Rear:
Not officially specified as a cargo rack, but designed for utility.
Atv Safety Standards:
Adheres to relevant ATV safety standards of the era.
Braking System Type:
Hydraulic disc brakes front and rear.
Parking Brake:
Mechanical parking brake lever.
Lighting:
Dual 30W headlights, 5W taillight/stoplight.
Seatbelt:
N/A (ATVs typically do not have seatbelts; riders use helmets and protective gear).
Rollover Protection:
N/A (Standard ATV design)
Oil Change Interval:
Every 100 hours or annually, whichever comes first (refer to manual for specific mileage equivalent).
Air Filter Cleaning:
Inspect every 20 hours, clean as needed. Replace every 2 years or as required.
Spark Plug Replacement:
Recommended every 6 months or 500 hours, or as needed based on condition.
Valve Adjustment Interval:
Every 200 hours or annually.
Engine Oil Type:
Yamalube 4 (or equivalent SAE 10W-40, API SG or higher, JASO MA)
Engine Oil Capacity:
1.80 US qt (1.7 L) without filter change, 1.90 US qt (1.8 L) with filter change.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Final Drive Oil Type:
Yamalube Gear Oil (or equivalent SAE 80 hypoid gear oil).
Final Drive Oil Capacity:
0.16 US qt (0.15 L)
Carburetor Fouling:
Common issue with older ATVs due to fuel varnish, requiring regular cleaning/rebuilding.
Suspension Wear:
Bushing and ball joint wear can occur with heavy use, impacting handling.
Clutch Wear:
Centrifugal clutch components can wear over time, affecting engagement and power delivery.
Cooling System Overheating:
While air-cooled, inadequate airflow or debris buildup can lead to overheating.
Yamaha Atv Legacy:
Yamaha has a long and successful history in ATV manufacturing, known for reliability and performance.
Wolverine Lineage:
The Wolverine series has been a staple in Yamaha's ATV lineup, known for its balance of sport and utility.
2003 Updates:
Minor updates and refinements may have been introduced for the 2003 model year, building on previous iterations.
Manufacturing Location:
Primarily manufactured in Japan, with components sourced globally.
Production Years:
1995-2005 (First Generation)
