Segment:
High-performance utility ATV
Target User:
Recreational riders, hunters, farmers, off-road enthusiasts seeking robust capability.
Key Competitors:
Can-Am Outlander, Polaris Sportsman, Honda Foreman/Rincon, Kawasaki Brute Force.
Powertrain:
Powerful 686cc liquid-cooled SOHC 4-valve engine with fuel injection.
Transmission:
Industry-leading Ultramatic® automatic transmission with engine braking.
Drivetrain:
On-Command® 2WD/4WD system with differential lock.
Suspension:
Independent front and rear suspension for superior comfort and control.
Braking:
Sealed hydraulic disc brakes front and rear.
Engine Mechanical:
Top-end (cylinder head, valves, camshaft), bottom-end (crankshaft, connecting rod, pistons), lubrication system, cooling system, fuel system (EFI), exhaust system.
Engine Electrical:
Ignition system, starting system, charging system (stator, regulator/rectifier), EFI control unit (ECU), sensors (MAP, TPS, IAT, O2), wiring diagrams.
Transmission:
Ultramatic® automatic transmission, gearbox components, clutch assembly, drive shafts, differentials (front and rear), CVT system diagnostics and repair.
Chassis Suspension:
Frame components, front and rear suspension (shocks, springs, A-arms), steering system (handlebar, tie rods, steering column), wheel hubs, bearings.
Braking System:
Hydraulic brake system (front and rear calipers, master cylinders, brake lines), parking brake, brake pad replacement, bleeding procedures.
Electrical Components:
Lighting system (headlights, taillights, indicators), battery, fuses, relays, instrumentation, switches, starter motor, fan control.
Bodywork Plastics:
Body panels, fenders, seat, handlebars, control levers, rack systems, skid plates, removal and installation procedures.
Routine Maintenance:
Oil changes, filter replacements (oil, air), spark plug checks/replacement, chain adjustment (if applicable to specific configurations), lubrication points.
Troubleshooting:
Diagnostic flowcharts for common issues, error code interpretation (EFI), symptom-based troubleshooting guides.
Engine Repair:
Complete engine overhaul, piston and ring replacement, valve adjustment, cylinder head gasket replacement, crankshaft and rod bearing inspection/replacement.
Transmission Repair:
CVT belt inspection and replacement, clutch service, gearbox disassembly and reassembly, differential service.
Suspension Service:
Shock absorber replacement, spring adjustment, bearing replacement (wheel and steering), A-arm bushing replacement.
Brake Service:
Brake pad and rotor replacement, caliper overhaul, master cylinder replacement, brake fluid flush and bleed.
Electrical Diagnostics:
Wiring diagram interpretation, component testing (sensors, actuators, ignition coil), battery voltage checks, charging system output testing.
Efi System Service:
Injector cleaning, fuel pump testing, throttle body cleaning and adjustment, sensor calibration procedures.
Depth:
Comprehensive factory-level detail, suitable for professional technicians and advanced DIY mechanics. Covers routine maintenance to complete engine and drivetrain overhauls.
Type:
Yamaha Ultramatic® V-belt automatic transmission with engine braking
Drive Modes:
H, L, N, R, P
Optional Features:
N/A (Ultramatic® is standard across the model range)
Cvtbelt Part Number:
5UY-17641-00-00 (example, verify for specific year)
Cvt Fluid Type:
Yamaha Yamalube 4 (or equivalent SAE 10W-30 API SG or higher)
Transmission Fluid Capacity:
0.90 US qt (0.85 L) (typical, check dipstick)
Final Drive:
O-ring sealed chain, sealed constant velocity (CV) joints
Engine Oil Change:
Every 3,000 km or 100 hours of operation; first service at 1,000 km or 20 hours.
Air Filter Cleaning:
Every 1,000 km or 20 hours (more frequently in dusty conditions).
Spark Plug Check:
Every 3,000 km or 100 hours.
Cvtbelt Inspection:
Every 1,000 km or 20 hours.
Brake Fluid Change:
Every 2 years or 18,000 km (refer to manual for precise interval).
Engine Oil Grade:
Yamalube 4 (or SAE 10W-40 API SG or higher)
Engine Oil Capacity:
2.40 US qt (2.2 L) with filter change
Coolant Type:
Permanent antifreeze coolant (50/50 mixture of ethylene glycol based coolant and distilled water)
Brake Fluid Type:
SAE J1703 or DOT 3
Final Drive Oil Type:
Yamalube Gear Oil (or SAE 80 API GL-4)
Final Drive Oil Capacity:
0.16 US qt (0.15 L) (front), 0.37 US qt (0.35 L) (rear)
Common Problems:
CVT belt wear, EFI sensor malfunctions (e.g., TPS, O2), occasional electrical connector corrosion, starter solenoid issues.
Preventative Measures:
Regular cleaning of air filter and CVT intake, proper maintenance of battery terminals, keeping EFI system clean and sensors calibrated.