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General| Displacement | 249cc |
|---|---|
| Starter | Kickstarter |
| Transmission | 5-Speed |
| Fuel System | Carburetor |
| Engine Type | Single-cylinder, 2-stroke |
| Bore x Stroke | 66.4 mm x 72 mm |
| Cooling | Liquid Cooled |
Detailed engine technical data including bore, stroke, fuel, and lubrication.
Critical dimension "X" for cylinder reassembly using gasket thickness.
Base settings for carburetors including jet sizes and needle positions.
Torque values for various engine bolts and nuts.
Exploded diagram and part numbers for the 250 MX ignition system.
Exploded diagrams and part numbers for 300 MX and Enduro ignition systems.
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