Centrifugal Clutch Installation Guide

1. Start by removing the right side engine cover by unscrewing the 5 screws.
Be careful with the gasket, it might stick a little bit.







2. Unscrew the big screw that keeps the small gear in place.
You'll need to block the gears rotation, for this, use a piece of copper wire so you don't damage the teeth.
A screwdriver alone might not be enough, use a wrench to help.








3. use the gear puller that comes with the engine kit, it's packed alone in a plastic bag.
Screw it by hand on the gear (it's threaded inside)
Then use a wrench to unscrew the whole, the gear should slowly pop out as you turn the wrench.
Once the gear is removed, remove the pin on the axle too using small pliers.





4. At this point, you need to install the new side cover but the studs from the big wheel won't allow it to fit.
You'll have to grind them to allow a perfect clearance with the side cover.
Be sure to mask with tape the center of the clutch cover to prevent any metal particles to get inside the clutch.







5. Now the new side cover fits perfectly, don't forget to intall the gasket.
I reused the same 3 bolts for the back but i used the 2 that come with the clutch kit for the front (they're shorter)





6. Now it's time to install the new centrifugal clutch, just slip it on and screw it in place (you might need to block the sprocket on the other side to prevent any rotation).
Don't forget the washers.





7. Then you just have to install the final cover, once again you'll have some clearance issues so I decided to cut some gaskets out of thick carboard, this will prevent the cover from touching the centrifugal clutch.
Rotate the engine to be sure the spacing is good.




8. DONE !
Put your home made gaskets in place using the remaining screws (2 long ones at the front, 2 short ones at the back).

You're ready to go !
No more messing wth the clutch lever (you might want to get rid of the clutch lever on the left side of the engine).