Segment:
Mid-size utility ATV, known for its versatility in recreational and moderate work applications.
Competitors 2010:
Polaris Sportsman 400, Can-Am Outlander 400, Yamaha Grizzly 450, Kawasaki Brute Force 300/400.
Key Strengths:
Often praised for its comfortable ride, reliable engine, and capable suspension for its class.
Trv Designation:
TRV typically indicates a 'Traction-Rapid-Vent' or similar feature, implying enhanced capability in varying terrain and potentially a rider-forward seating position or passenger capability.
Engine Size Class:
400cc class, a popular and balanced displacement for a wide range of ATV uses.
Target User:
Recreational riders, trail enthusiasts, and those needing a capable but not overly powerful utility ATV.
Engine Mechanical:
Engine assembly, disassembly, inspection, cylinder head, pistons, crankshaft, camshaft, valves, lubrication system, cooling system.
Fuel System:
Fuel tank, fuel pump, fuel filter, carburetor (or EFI system if applicable), fuel lines, fuel injection system (if equipped).
Ignition System:
Ignition coils, spark plugs, CDI unit, stator, wiring.
Transmission:
Automatic transmission (CVT), drive clutch, driven clutch, belt inspection and replacement, gearcase, differential.
Drivetrain:
Driveshafts, CV joints, axles, wheel hubs, transfer case (if applicable).
Suspension:
Front and rear suspension components, shock absorbers, springs, control arms, bushings, alignment specifications.
Steering:
Steering column, tie rods, steering knuckles, power steering system (if equipped), alignment.
Braking System:
Hydraulic brake system, brake calipers, brake pads, brake discs, master cylinder, brake lines, bleeding procedures.
Electrical System:
Battery, charging system (alternator/stator), starting system (starter motor), lighting, ignition switch, relays, fuses, wiring diagrams.
Body And Frame:
Frame inspection, body panels, fenders, racks, seat, handlebar, controls.
Troubleshooting:
Diagnostic procedures, common problems and solutions for all major systems.
Scheduled Maintenance:
Oil changes, filter replacements, lubrication points, valve adjustments, spark plug checks.
Engine Repair:
Complete engine rebuilds, piston and cylinder replacement, camshaft and valve train service.
Transmission Repair:
Clutch service, gearcase overhaul, drive belt replacement and adjustment.
Suspension And Steering Service:
Component replacement, alignment adjustments, steering system diagnostics.
Brake System Service:
Brake pad replacement, caliper servicing, fluid flush and bleeding.
Electrical Diagnostics:
Wiring diagram interpretation, component testing, troubleshooting electrical faults.
Carburetor Rebuild Or Efi Calibration:
Detailed steps for cleaning, tuning, or recalibrating the fuel delivery system.
Torque Specifications:
Precise torque values for all critical fasteners and components.
Depth:
Comprehensive from basic maintenance to complete engine and transmission overhauls, including advanced diagnostics and electrical troubleshooting.
Engine Type:
Four-stroke, single-cylinder
Displacement:
375cc (approximate, actual may vary slightly based on specific model variants)
Bore X Stroke:
Specifications typically found within the manual. Likely around 80mm x 74mm.
Cooling System:
Liquid-cooled
Valve Train:
SOHC (Single Overhead Camshaft), 2 valves per cylinder (typical for this class).
Horsepower Estimate:
Approximately 25-30 HP (varies by tuning and exact configuration).
Torque Estimate:
Approximately 20-25 lb-ft (varies by tuning and exact configuration).
Fuel Delivery:
Carbureted (likely Mikuni or Keihin).
Fuel Type:
Unleaded gasoline
Fuel Tank Capacity:
Typically around 3.5 - 4.5 gallons.
Length:
Around 83-85 inches (210-216 cm).
Width:
Around 46-48 inches (117-122 cm).
Height:
Around 48-50 inches (122-127 cm).
Wheelbase:
Around 50-52 inches (127-132 cm).
Front Rack Capacity:
Typically around 50 lbs (23 kg).
Rear Rack Capacity:
Typically around 100 lbs (45 kg).
Dry Weight:
Around 550-600 lbs (250-272 kg).
Towing Capacity:
Typically around 1000-1050 lbs (454-476 kg).
Ground Clearance:
Around 8-10 inches (20-25 cm).
Engine Oil Change:
Every 100 hours or annually, whichever comes first.
Air Filter Inspection:
Every 20 hours or as needed in dusty conditions; replace annually or as needed.
Spark Plug Inspection And Cleaning:
Every 100 hours or annually.
Cv Belt Inspection:
Every 50 hours or annually. Replace if worn or damaged.
Brake Fluid Flush:
Every 2 years or as recommended.
Engine Oil Type:
SAE 10W-40, API SG or higher.
Engine Oil Capacity:
Approximately 2.0 - 2.5 quarts (1.9 - 2.4 liters) with filter change. (Verify in manual).
Coolant Type:
Ethylene glycol-based antifreeze with corrosion inhibitors, typically a 50/50 mix with distilled water.
Brake Fluid Type:
DOT 3 or DOT 4 hydraulic brake fluid.
Common Wear Items:
CV boots, tie rod ends, brake pads, wheel bearings, and suspension bushings are common wear items on ATVs used frequently.
Cv Belt Durability:
CV belts can be susceptible to premature wear if subjected to excessive heat or improper clutch engagement.