Segment:
Entry-level to mid-range utility ATV
Target Audience:
Recreational riders, farmers, hunters, light utility use
Key Competitors:
Honda FourTrax, Kawasaki Bayou/Prairie, Suzuki QuadRunner
Engine Type:
Reliable air-cooled 4-stroke engine
Drive System:
Available in 2WD and 4WD configurations
Transmission Type:
Automatic (CVT-like feel but not a true CVT, uses a torque converter and belt system) with 5 forward gears and reverse.
Suspension Type:
Independent front suspension for improved ride comfort and handling.
Engine:
Detailed engine overhaul, diagnostics, tuning, components (cylinder, piston, crankshaft, valves, camshaft), lubrication system, cooling system.
Fuel System:
Carburetor (Mikuni BS34) disassembly, cleaning, adjustment, fuel pump, fuel lines, fuel tank maintenance.
Transmission:
5-speed transmission with reverse, clutch (wet multi-plate), gearbox overhaul, shift mechanism, final drive (shaft drive).
Drivetrain 4Wd:
4WD system operation, front differential, propeller shaft, drive shafts, U-joints, 4WD engagement mechanism.
Electrical System:
Ignition system (CDI), starting system (electric start), charging system (stator, rectifier/regulator), lighting, battery, wiring diagrams.
Brakes:
Front hydraulic disc brakes, rear drum brake, brake system maintenance, bleeding, component replacement.
Suspension:
Front independent double-wishbone suspension, rear swingarm, shock absorbers, springs, wheel bearings, steering components.
Frame And Body:
Frame inspection, body panels, fenders, seat, handlebars, footrests, plastics repair.
Cooling System:
Air-cooled engine, cooling fins, heat dissipation.
Maintenance:
Scheduled maintenance, oil changes, filter replacements, spark plug checks, valve adjustments, lubrication points, chain adjustment (if applicable, though this model is shaft drive).
Troubleshooting:
Comprehensive diagnostic charts for common problems, symptom-based troubleshooting guides.
Repair:
Step-by-step instructions for component disassembly, repair, reassembly, and adjustments for all major systems.
Diagnostics:
Engine performance testing, electrical system diagnostics, identifying and rectifying faults.
Depth Level:
Comprehensive (from basic fluid checks to full engine and transmission rebuilds)
Detail Level:
Detailed torque specifications, tolerances, measurements, and service limits.
Engine Type:
Air-cooled, SOHC, 4-stroke, 2-valve
Bore X Stroke:
83.0 mm x 64.5 mm
Horsepower Estimated:
Approx. 20-22 hp @ 6500 rpm (Varies slightly by year/tuning)
Torque Estimated:
Approx. 20-22 lb-ft @ 5000 rpm (Varies slightly by year/tuning)
Carburetor Model:
Mikuni BS34 (Single) with accelerator pump
Fuel Type:
Unleaded gasoline
Fuel Capacity:
3.0 L (0.8 US gal) including reserve
Length:
Approx. 1980 mm (78.0 in)
Width:
Approx. 1095 mm (43.1 in)
Height:
Approx. 1120 mm (44.1 in)
Wheelbase:
Approx. 1245 mm (49.0 in)
Dry Weight:
Approx. 245 kg (540 lbs) for 4WD
Curb Weight Estimated:
Approx. 260 kg (573 lbs)
Weight Distribution:
Balanced for stability during operation.
Safety Certification:
ATV safety standards (e.g., ANSI/SVIA)
Braking System:
Front dual hydraulic disc brakes, rear internal expanding drum brake.
4Wd Engagement:
On-demand 4WD system for enhanced traction.
Handlebars:
Wide handlebars for leverage and control.
Footrests:
Wide, serrated footrests for secure footing.
Lighting:
Headlights and taillight for visibility.
Engine Oil Change:
Every 2000 km (1200 miles) or 6 months
Air Filter Cleaning:
Every 600 km (370 miles) or 3 months; replace as needed.
Spark Plug Check:
Every 2000 km (1200 miles) or 6 months
Valve Clearance Check:
Every 4000 km (2500 miles) or 12 months
Transmission Oil Change:
Every 4000 km (2500 miles) or 12 months
Engine Oil Grade:
Yamalube 4 (or equivalent) SAE 10W-40 API SG, SF or SE
Engine Oil Capacity:
2.1 L (2.2 US qt) without filter change, 2.3 L (2.4 US qt) with filter change.
Transmission Fluid Type:
Yamalube SAE 10W-40 or equivalent API SG, SF or SE
Brake Fluid Type:
DOT 3 or DOT 4
Common Wear Items:
Front axle U-joints, rear brake shoes, carburetor jets (clogging), front brake pads.
Potential Failures:
Cam chain wear, starter motor issues, differential seals (4WD models).
Carburetor Cleaning:
Regular cleaning is essential due to the engine's air-cooling and potential for fuel varnish build-up.
4Wd System Care:
Regularly inspect and grease U-joints and ensure proper lubrication of the front differential.
Manufacturer:
Yamaha Motor Company, established in 1955, renowned for motorcycles, marine products, and powersports vehicles.
Lineage:
Evolved from earlier Yamaha ATV models, building upon proven technologies.
Key Updates:
Introduction of 4WD capability, refinement of engine and transmission, chassis updates over its production run.
Manufacturing Location:
Primarily Japan
Market Success:
Popular mid-size ATV known for its durability and reliability.