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Engine Removal

SAFETY FIRST: Protective gloves and eyewear are recommended at this point.

These components can be worked on with the engine installed-

  • Cylinder head
  • Valves
  • Cylinder
  • Clutch
  • Carburetor
  • Flywheel
  • Water Pump
  • Balancer

The engine must be removed to work on these components-

  • Crankcase
  • Crankshaft
  • Transmission
  • Oil pump

Drain the engine oil. See the Engine Oil topic for more information.

Drain the transmission oil. See the Transmission Oil topic for more information.

Remove the fuel tank. See the Fuel Tank topic for more information.

Remove the exhaust system. See the Exhaust System topic for more information.

Drain the coolant. See the Coolant topic for more information.

Remove the carburetor. See the Carburetor topic for more information.

Remove the kick start pedal. See the Right Side Engine Components topic for more information.

Remove the gearshift pedal. See the Right Side Engine Components topic for more information.

Remove the rear brake pedal. See the Rear Brake topic for more information.

Remove the spark plug cap. See the Spark Plug topic for more information.

Remove the ignition coil. See the Ignition System topic for more information.

Remove the engine sprocket cover. See the Engine Sprocket topic for more information.

Remove the drive chain. See the Drive Chain topic for more information.

Disconnect the clutch cable from the lifter lever, and remove the clutch cable stay. See the Clutch topic for more information.

2002-2004 CRF450R- Remove the radiators. See the Radiators topic for more information.

CRF450X- Remove the coolant reservoir tank. See the Coolant topic for more information.

CRF450X- Remove the starter motor cable and ground.

Remove the right engine guard bolt and washer with a 10 mm socket. Remove the right engine guard.


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