Manual Coverage
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Systems Covered
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Engine Mechanical:
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Yes (complete tear down and rebuild)
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Engine Electrical:
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Yes (ignition, charging, starting systems)
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Fuel System:
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Yes (carburetion, fuel lines)
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Cooling System:
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Yes (radiator, hoses, thermostat)
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Exhaust System:
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Yes
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Transmission Gearbox:
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Yes (clutch, gear shifting mechanism)
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Frame Chassis:
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Yes
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Suspension Front:
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Yes (forks, steering head)
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Suspension Rear:
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Yes (shock absorber, swingarm)
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Braking System Front:
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Yes (discs, calipers, master cylinder)
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Braking System Rear:
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Yes (disc, caliper, master cylinder)
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Wheels Tires:
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Yes
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Electrical System Lighting:
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Yes (headlight, taillight, signals)
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Electrical System Instruments:
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Yes (speedometer, tachometer)
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Bodywork Fairings:
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Yes
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Control Systems:
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Yes (throttle, clutch, brake levers)
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Procedures Included
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Routine Maintenance:
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Yes (oil changes, filter replacements, chain adjustment)
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Troubleshooting:
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Yes (diagnostic procedures, common issues)
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Engine Rebuild:
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Yes (complete tear down and reassembly)
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Suspension Service:
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Yes (fork seal replacement, damper adjustments)
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Brake System Repair:
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Yes (bleeding, pad replacement)
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Electrical Diagnostics:
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Yes (wiring diagrams, component testing)
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Carburetor Tuning:
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Yes
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Chain Sprocket Replacement:
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Yes
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Technical Depth
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Depth Level:
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Comprehensive (from basic maintenance to full engine rebuild)
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Engine Specifications
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Primary Engine
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Engine Type:
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2-stroke, liquid-cooled, V-twin
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Displacement:
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249 cc
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Bore X Stroke:
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54.0 mm x 54.5 mm
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Compression Ratio:
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7.8:1
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Power Delivery:
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V-Force reed valves, ATAC (Automatic T.O.R.C. System) exhaust control
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Performance
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Horsepower:
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Approx. 70 HP @ 11,000 rpm (claimed)
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Torque:
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Approx. 30 lb-ft @ 10,500 rpm (claimed)
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Fuel System
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Carburetion:
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2 x Mikuni TMX30 flat-slide carburetors
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Fuel Type:
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Unleaded gasoline (95 RON recommended)
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Lubrication
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Oil System:
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Pre-mix or Autolube oil injection
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Ignition
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Ignition System:
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Digital CDI
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Maintenance
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Service Intervals
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Oil Change Interval:
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Refer to manual (typically every 3000-5000 km for engine oil, 2-stroke oil tank needs regular monitoring)
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Spark Plug Replacement:
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Refer to manual (e.g., every 6000 km)
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Chain Tension Check:
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Refer to manual (e.g., every 1000 km)
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Fluid Specifications
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Engine Oil Type:
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Refer to manual (e.g., SAE 10W-40 API SG or higher for gearbox oil)
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2 Stroke Oil Type:
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High-quality 2-stroke synthetic or semi-synthetic oil (specific viscosity recommended in manual)
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Coolant Type:
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Ethylene glycol-based coolant with anti-corrosion additives (50/50 mix with distilled water)
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Brake Fluid Type:
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DOT 4
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Known Issues
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Two Stroke Wear:
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Piston and cylinder wear due to high performance and 2-stroke nature; requires diligent maintenance.
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Carburetor Sync:
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Carburetors can be sensitive to atmospheric changes and require periodic syncing for optimal performance.
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Atac System:
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The ATAC system can become gummed up or seize, affecting power delivery at lower RPMs; requires cleaning.
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Power Valves:
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2-stroke power valves can carbon up and require decarbonizing for proper operation.
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