Engine:
        
        
            Internal combustion engine assembly, disassembly, inspection, repair, cooling system, lubrication system, fuel delivery, ignition system, exhaust system.
        
     
    
        
            Transmission:
        
        
            CVT (Continuously Variable Transmission) system, clutch operation, belt inspection and replacement, gearbox lubrication and maintenance.
        
     
    
        
            Drivetrain:
        
        
            Front and rear driveshafts, differential assemblies, final drive, axle components, U-joints.
        
     
    
        
            Suspension:
        
        
            Front and rear suspension components, shock absorbers, A-arms, bushings, steering knuckles, alignment specifications.
        
     
    
        
            Brakes:
        
        
            Hydraulic brake system, brake calipers, master cylinder, brake lines, brake pads, rotor inspection and replacement, bleeding procedures.
        
     
    
        
            Steering:
        
        
            Steering column, tie rods, ball joints, steering linkage, potential mention of electronic power steering if applicable to the model/year.
        
     
    
        
            Electrical:
        
        
            Battery system, charging system (stator, regulator/rectifier), starter motor, lighting system (headlights, taillights, brake lights), ignition switch, wiring diagrams, fuses, relays.
        
     
    
        
            Bodywork:
        
        
            Body panels, fenders, racks, seat, handlebars, plastics, fairings, fasteners.
        
     
    
        
            Cooling System:
        
        
            Radiator, fan, coolant, thermostat, hoses, water pump.
        
     
    
        
            Fuel System:
        
        
            Fuel tank, fuel pump, fuel lines, fuel filter, carburetor or fuel injection system (depending on specific 400 TRV configuration).
        
     
    
        
            Lubrication System:
        
        
            Oil pump, oil filter, oil passages, oil capacity and type.
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil change, filter replacement, air filter cleaning/replacement, spark plug inspection/replacement, drive belt inspection, chain lubrication (if applicable), tire pressure checks, brake fluid checks, battery maintenance.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic charts, symptom-based troubleshooting, common fault identification for electrical, engine, and mechanical issues.
        
     
    
        
            Repair Procedures:
        
        
            Step-by-step instructions for disassembly, repair, and reassembly of all major components and systems.
        
     
    
        
            Component Replacement:
        
        
            Detailed guidance on replacing wear items and faulty components such as brake pads, bearings, seals, cables, and electronic sensors.
        
     
    
        
            Engine Rebuild:
        
        
            Comprehensive instructions for complete engine overhaul, including piston, ring, cylinder, valve train, and crankshaft servicing.
        
     
    
        
            Transmission Overhaul:
        
        
            Procedures for gearbox internal inspection, bearing replacement, seal replacement, and clutch assembly servicing.
        
     
    
        
            Electrical Diagnostics:
        
        
            Wiring diagrams, circuit testing, component testing, and fault finding for the electrical system.
        
     
    
        
            Suspension Adjustment:
        
        
            Guidance on adjusting suspension settings, servicing shock absorbers, and replacing suspension wear components.
        
     
    
        
            Wheel Alignment:
        
        
            Specifications and procedures for checking and adjusting wheel alignment (toe-in/toe-out).
        
     
    
    
        
            Depth:
        
        
            Comprehensive factory-level detail, suitable for professional technicians and advanced DIY enthusiasts.
        
     
    
        
            Diagnostics:
        
        
            Advanced diagnostic procedures, including interpretation of diagnostic codes (if applicable) and troubleshooting of complex systems.
        
     
    
        
            Specifications:
        
        
            Detailed torque specifications, clearance measurements, fluid capacities, electrical resistance values, and performance data.
        
     
    
        
            Diagrams:
        
        
            Exploded views of components, system diagrams, and detailed wiring schematics.
        
     
 
    
    
    
        
            Manufacturer:
        
        
            Arctic Cat (likely using a Loncin or similar manufactured engine, common for this class)
        
     
    
        
            Configuration:
        
        
            Single-cylinder, 4-stroke
        
     
    
        
            Displacement:
        
        
            Approximately 375cc - 400cc (exact specification may vary slightly by sub-model, but '400' is indicative)
        
     
    
        
            Cooling System:
        
        
            Liquid-cooled
        
     
    
    
        
            Horsepower:
        
        
            Estimated 25-30 HP (typical for this engine displacement and class)
        
     
    
        
            Torque:
        
        
            Estimated 20-25 lb-ft (typical for this engine displacement and class)
        
     
    
    
        
            Fuel Delivery:
        
        
            Likely Carbureted (e.g., Mikuni, Keihin) or potentially early fuel injection for 2007, depending on specific trim/market.
        
     
    
        
            Fuel Type:
        
        
            Unleaded gasoline (Octane rating typically 87 or higher)
        
     
    
    
        
            Oil Type:
        
        
            API SG or higher, SAE 10W-40 (common for ATVs, confirm with manual)
        
     
    
        
            Oil Capacity:
        
        
            Approximately 1.7 - 2.0 liters (check manual for exact capacity with filter change)
        
     
 
    
    
    
        
            Length:
        
        
            Approx. 83 inches (2108 mm) (typical for this class, verify specific model)
        
     
    
        
            Width:
        
        
            Approx. 46 inches (1168 mm) (typical for this class, verify specific model)
        
     
    
        
            Height:
        
        
            Approx. 47 inches (1194 mm) (typical for this class, verify specific model)
        
     
    
    
        
            Dry Weight:
        
        
            Approx. 600-650 lbs (272-295 kg) (typical for this class, verify specific model)
        
     
    
        
            Ground Clearance:
        
        
            Approx. 8-10 inches (203-254 mm) (typical for this class, verify specific model)
        
     
    
    
        
            Front Rack Capacity:
        
        
            Approx. 100 lbs (45 kg) (typical)
        
     
    
        
            Rear Rack Capacity:
        
        
            Approx. 200 lbs (90 kg) (typical)
        
     
    
    
        
            Towing Capacity:
        
        
            Approx. 1050 lbs (476 kg) (typical)
        
     
    
    
        
            Front Tire Size:
        
        
            e.g., 25x8-12 (verify specific model)
        
     
    
        
            Rear Tire Size:
        
        
            e.g., 25x10-12 (verify specific model)
        
     
    
    
        
            Wheel Bolt Pattern:
        
        
            Likely 4x110mm or similar standard ATV pattern (verify with manual)
        
     
 
    
    
    
        
            Engine Oil Change:
        
        
            Every 100 hours or annually (verify with manual for precise intervals).
        
     
    
        
            Air Filter Cleaning:
        
        
            Every 25 hours or as needed based on conditions.
        
     
    
        
            Spark Plug Replacement:
        
        
            Every 100 hours or annually.
        
     
    
        
            Drive Belt Inspection:
        
        
            Every 50 hours or annually, replace as needed.
        
     
    
        
            Brake Fluid Flush:
        
        
            Every 2 years or as recommended.
        
     
    
    
        
            Engine Oil Spec:
        
        
            SAE 10W-40, API SG or higher.
        
     
    
        
            Coolant Spec:
        
        
            Ethylene glycol-based antifreeze (50/50 mix with distilled water), typically green or yellow (verify with manual).
        
     
    
        
            Brake Fluid Spec:
        
        
            DOT 3 or DOT 4 hydraulic brake fluid (verify with manual).
        
     
    
        
            Gearbox Oil Spec:
        
        
            Specific gear oil or SAE 80W-90 (verify with manual).
        
     
    
    
        
            Common Wear Items:
        
        
            Drive belts, brake pads, suspension bushings, wheel bearings, tie rod ends.
        
     
    
        
            Electrical Concerns:
        
        
            Occasional issues with stator, regulator/rectifier, or battery connections; wiring harness integrity.
        
     
    
        
            Engine Performance:
        
        
            Carburetor tuning/cleaning, potential issues with starter solenoids or ignition coils.