Segment:
High-performance sport ATV (All-Terrain Vehicle).
Target Audience:
Enthusiasts seeking performance, sport riding, trail riding, and recreational use.
Key Competitors:
Honda TRX450R, Suzuki LT-R450, Can-Am DS450.
Unique Selling Points:
Powerful 700cc engine, advanced fuel injection, long-travel suspension, aggressive styling, proven reliability.
Engine Type:
Liquid-cooled, DOHC, 4-stroke, 5-valve, fuel-injected.
Transmission Type:
Constant mesh 5-speed with reverse.
Suspension Type:
Independent double-wishbone front suspension with fully adjustable shocks; Swingarm rear suspension with fully adjustable shock.
Brakes:
Dual hydraulic disc front brakes, Single hydraulic disc rear brake.
Engine:
Comprehensive coverage including disassembly, assembly, inspection, diagnosis, and repair of the engine, cylinder head, piston, crankshaft, camshaft, valves, and lubrication system.
Fuel System:
Detailed information on fuel injection system (EFI), fuel pump, injectors, throttle body, fuel tank, and fuel lines.
Cooling System:
Radiator, fan, water pump, coolant hoses, thermostat, and diagnosis of cooling system performance.
Ignition System:
ECU, ignition coils, spark plugs, and troubleshooting ignition system faults.
Transmission:
Disassembly, assembly, inspection, and repair of the 5-speed transmission, clutch operation, and gear shifting mechanisms.
Drivetrain:
Front and rear drive shafts, CV joints, differential (if applicable), and final drive assembly.
Suspension:
Front and rear suspension systems, shock absorbers, springs, control arms, ball joints, tie rods, and alignment procedures.
Brakes:
Hydraulic brake system, front and rear brake calipers, master cylinders, brake lines, pads, rotors, bleeding procedures, and troubleshooting.
Steering:
Steering column, handlebars, tie rods, steering knuckles, and steering system adjustments.
Electrical System:
Wiring diagrams, battery, charging system (stator, regulator/rectifier), starter motor, lighting, switches, sensors, and ECU diagnostics.
Chassis And Body:
Frame, body panels, plastics, seats, fenders, and general chassis inspection.
Troubleshooting:
Extensive diagnostic charts and symptom-based troubleshooting guides for common and uncommon issues.
Preventative Maintenance:
Regular service checks, fluid changes, filter replacements, lubrication points, and battery maintenance.
Routine Maintenance:
Oil changes, filter replacements, chain adjustment, spark plug service, brake pad inspection, and tire pressure checks.
Major Repairs:
Engine rebuilds, transmission overhauls, suspension component replacement, and brake system overhauls.
Diagnostic Procedures:
Step-by-step guides for diagnosing electrical faults, engine performance issues, and mechanical failures using test equipment and visual inspection.
Torque Specifications:
Precise torque values for all critical fasteners throughout the vehicle.
Wiring Diagrams:
Detailed, color-coded wiring diagrams for all electrical systems.
Depth:
Factory-level detail covering everything from basic fluid checks and adjustments to complete engine and transmission overhauls. Includes diagnostic procedures for electronic systems.
Engine Type:
Liquid-cooled, DOHC, 4-stroke, 5-valve, Single-cylinder
Bore X Stroke:
100.0 mm x 83.9 mm
Horsepower Estimated:
Approximately 45-50 HP (depending on specific tuning and exhaust modifications)
Torque Estimated:
Approximately 40-45 lb-ft (depending on specific tuning and exhaust modifications)
Fuel Delivery:
Yamaha Fuel Injection (YFI) with 44mm throttle body.
Fuel Type:
Unleaded gasoline, 87 octane minimum.
Oil Type:
Yamalube 4 (or equivalent) SAE 10W-40 or 20W-40 API SG or higher.
Oil Capacity:
Approximately 2.2 quarts (2.1 liters) with filter change.
Ignition System:
T.C.I. (Transistor Controlled Ignition) with electronic advance.
Spark Plug Type:
NGK CR9E or Denso U27ETR.
Infotainment System:
N/A (Sport ATV, typically no infotainment features beyond basic instrumentation).
Driver Assistance Features:
N/A (Sport ATV, focus is on rider control and performance).
Connectivity Options:
N/A
Dashboard Features:
Digital LCD meter displaying speedometer, odometer, trip meter, clock, neutral indicator, reverse indicator, and coolant temperature warning light.
ECU Functionality:
Engine Control Unit (ECU) manages fuel injection, ignition timing, and other engine parameters for optimal performance and emissions.
Engine Oil Change:
Every 1,000 miles (1600 km) or 6 months, whichever comes first. Also, check oil level at every use.
Air Filter Cleaning:
Clean every 6 months or 1,000 miles (1600 km); replace as needed.
Spark Plug Inspection:
Inspect every 6 months or 1,000 miles (1600 km); replace if electrode gap is incorrect or plug is fouled.
Chain Maintenance:
Inspect and lubricate every 6 months or 1,000 miles (1600 km); check and adjust tension as needed.
Brake Fluid Flush:
Replace brake fluid every 2 years or 24,000 miles (38,000 km).
Engine Oil:
Yamalube 4 (or equivalent) SAE 10W-40 or 20W-40 API SG or higher.
Coolant:
Permanent type antifreeze coolant (ethylene glycol base) with deionized water at a 50/50 mixture ratio.
Brake Fluid:
DOT 3 or DOT 4 brake fluid.
Common Wear Items:
Brake pads, tires, chain and sprockets, wheel bearings, ball joints, tie rod ends, clutch plates (under aggressive use).
Potential Failures:
Occasionally, voltage regulator/rectifier failure can lead to charging system issues. Some users report premature wear on certain suspension components under extreme use.
