How to Replace a Honda CRF450R Clutch 

If you ride your dirt bike half as hard as it's meant to be ridden, changing the clutch is a repair you'll likely need to take care of more than once during the lifetime of your machine. 

Watch the video above and follow the steps below to learn how to replace the clutch on a Honda CRF450R dirt bike.

Parts Needed - Honda CRF 450R Clutch Replacement

• Friction Clutch Plate Part #22201-MEB-670 (x2)
• Friction Clutch Plate Part #22201-MEN-670 (x6)
• Clutch Drive Plate Part #22321-KZ3-690 (x7)
• Honda HP4M Oil 

NOTE: The 2005 Honda CRF450R clutch is made up of two different types of friction clutch plates. Make sure you're buying the correct number of each type of friction plate. Use the links provided to get the parts needed to complete this job.

Replacing Honda CRF450R Clutch

Step 1. Soak the new clutch friction plates in engine oil for at least an hour before installing them.

Step 2. Remove the brake pedal.

Step 3. Remove the clutch cover by taking out the six cover bolts. Position an oil pan under the cover to catch the oil that will spill out as the clutch cover is removed.

Step 4. Remove the six clutch spring bolts. Loosen the bolts in a diagonal pattern so the tension is kept even on the clutch pressure plate.

Step 5. Remove the clutch pressure plate, and the clutch friction and drive plates beneath it. 

Step 6. Install the new clutch friction plate (part # 22201-MEB-670)

Step 7. Next, install the new clutch drive plates (also called "clutch discs") and clutch friction plates alternately in the following order: 

1. Drive plate - part # 22321-KZ3-690

2. Friction plate - part # 22201-MEN-670  

3. Drive plate - part # 22321-KZ3-690

4. Friction plate  - part # 22201-MEN-670 

5. Drive plate - part # 22321-KZ3-690

6. Friction plate - part # 22201-MEN-670 

7. Drive plate - part # 22321-KZ3-690

8. Friction plate - part # 22201-MEN-670

9. Drive plate - part # 22321-KZ3-690

10. Friction plate - part # 22201-MEN-670

11. Drive plate - part # 22321-KZ3-690

12. Friction plate - part # 22201-MEN-670

13. Drive plate - part # 22321-KZ3-690

Step 8. Install the new clutch friction plate (part #22201-MEN-670)

Step 9. Reinstall the clutch pressure plate and the six clutch spring bolts. Tighten the bolts in a diagonal pattern so the tension is kept even on the clutch pressure plate.

Step 10. Torque the clutch spring bolts to 9 foot-pounds.

Step 11. Reinstall the clutch cover and torque the cover bolts to 7 foot-pounds.

Step 12. Reinstall the brake pedal with the washer between the pedal and the transmission housing.

Step 13. Refill the engine with 0.75 of a quart of Honda HP4M oil.

Step 14. Check the oil level in the window just below the oil filler cap, and top off the oil if necessary.

UPDATE: Partzilla's John Talley took our CRF450 motorcycle and did a complete rebuild on it, including an aftermarket clutch upgrade. Watch the video below to see the clutch upgrade on our 2005 Honda CRF450 dirt bike.