Segment:
        
        
            Performance Off-Road Motorcycle (Enduro/Motocross)
        
     
    
    
        
            Key Competitors:
        
        
            KTM EXC/MXC, Yamaha YZ, Honda CR, Suzuki RM, Kawasaki KX.
        
     
    
    
        
            Vehicle Platform:
        
        
            Two-stroke, liquid-cooled (for CR), air-cooled (for WR), high-performance off-road chassis.
        
     
 
    
    
    
        
            Engine:
        
        
            Comprehensive engine overhaul, top-end, bottom-end, carburetor, ignition, cooling (air-cooled).
        
     
    
        
            Transmission:
        
        
            Gearbox disassembly, inspection, repair, lubrication, clutch service.
        
     
    
        
            Chassis:
        
        
            Frame, suspension (front forks, rear shock), steering, swingarm, bearings.
        
     
    
        
            Brakes:
        
        
            Hydraulic brake system (front and rear calipers, master cylinders, lines, bleeding).
        
     
    
        
            Electrical:
        
        
            Wiring diagrams, lighting system, ignition system troubleshooting, stator, CDI unit.
        
     
    
        
            Fuel System:
        
        
            Carburetor disassembly, cleaning, adjustment, fuel tank, petcock.
        
     
    
        
            Exhaust:
        
        
            Exhaust system components, pipe packing, spark arrestor.
        
     
    
    
        
            Routine Maintenance:
        
        
            Oil changes, filter replacements, spark plug checks, chain adjustment, air filter cleaning.
        
     
    
        
            Troubleshooting:
        
        
            Diagnostic flowcharts for common performance issues, starting problems, electrical faults.
        
     
    
        
            Repair:
        
        
            Detailed step-by-step repair instructions for all major components and systems.
        
     
    
        
            Rebuilds:
        
        
            Complete engine and transmission rebuild procedures, including torque specifications and tolerances.
        
     
    
        
            Adjustments:
        
        
            Carburetor jetting and mixture adjustments, clutch lever free play, chain slack.
        
     
    
        
            Suspension Setup:
        
        
            Basic suspension adjustments, fork oil level and type, rear shock adjustment.
        
     
    
        
            Wheel Service:
        
        
            Tire removal/installation, wheel balancing, spoke tensioning.
        
     
    
        
            Bodywork Repair:
        
        
            Fender removal/installation, seat, fuel tank, side panels, graphics.
        
     
    
    
        
            Diagnostic Capability:
        
        
            Advanced diagnostic procedures for identifying root causes of mechanical and electrical failures.
        
     
    
        
            Rebuild Complexity:
        
        
            Suitable for comprehensive engine and gearbox rebuilds, including piston, ring, crank, and bearing replacement.
        
     
    
        
            Special Tools:
        
        
            Lists and descriptions of specialized tools required for specific repair and maintenance tasks.
        
     
    
        
            Torque Specifications:
        
        
            Extensive list of critical torque values for engine, transmission, chassis, and fasteners.
        
     
    
        
            Diagnostic Charts:
        
        
            Detailed flowcharts for troubleshooting common starting, running, and electrical issues.
        
     
 
    
    
    
        
            Engine Type:
        
        
            Two-stroke, single-cylinder
        
     
    
        
            Cooling System:
        
        
            Air-cooled (WR250/360), Liquid-cooled (CR250)
        
     
    
        
            Bore Stroke 250:
        
        
            Approx. 68mm x 68.8mm
        
     
    
        
            Bore Stroke 360:
        
        
            Approx. 76mm x 79mm
        
     
    
        
            Reed Valve System:
        
        
            Standard
        
     
    
    
        
            Horsepower Estimate 250:
        
        
            Approx. 40-45 HP
        
     
    
        
            Horsepower Estimate 360:
        
        
            Approx. 45-50 HP
        
     
    
    
        
            Carburetor Size 250:
        
        
            Mikuni TMX38 or similar
        
     
    
        
            Carburetor Size 360:
        
        
            Mikuni TMX38 or similar
        
     
    
        
            Fuel Type:
        
        
            Premium Unleaded Gasoline
        
     
    
    
        
            Ignition Type:
        
        
            CDI (Capacitor Discharge Ignition)
        
     
    
    
        
            Premix Ratio:
        
        
            Typically 30:1 to 50:1 (refer to manual for specific recommendations)
        
     
 
    
    
    
        
            Top End Rebuild:
        
        
            Variable, dependent on usage; often recommended every 50-100 hours of hard riding.
        
     
    
        
            Transmission Oil Change:
        
        
            Every 15-20 hours or as specified in manual.
        
     
    
        
            Air Filter Cleaning:
        
        
            After every few rides, or more frequently in dusty conditions.
        
     
    
    
        
            Engine Oil Type:
        
        
            2-stroke premix oil (e.g., Motul 800, Castrol TTS, or equivalent).
        
     
    
        
            Gearbox Oil Grade:
        
        
            SAE 75W/90 or 80W/90 GL-3/GL-4 gear oil (specific recommendation in manual).
        
     
    
        
            Coolant Type:
        
        
            Ethylene Glycol based antifreeze with corrosion inhibitors (for CR models).
        
     
    
    
        
            Clutch Wear:
        
        
            Clutch plates can wear over time due to aggressive riding and improper adjustment.
        
     
    
        
            Carburetor Tuning:
        
        
            May require re-jetting due to altitude, temperature, or modifications.
        
     
    
        
            Ignition Coil Failure:
        
        
            CDI or ignition coil can fail, leading to no spark.
        
     
    
        
            Power Valve Sticking:
        
        
            Carbon buildup can cause the exhaust power valve to stick, affecting engine performance.