Radius washer between clutch and crank?

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maurtis

New Member
Dec 14, 2011
707
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Kyle, TX
Yesterday I picked up a 212cc Predator to put on a Cranbrook I found in the trash...

LOL, j/k

I am replacing the my son's go-kart motor with a 212cc Preddy. I was wondering, I see the crank has a small shoulder radius on the motor side to go from the 3/4" crank area to a larger diameter.

Neither my motor or clutch came with a radius washer to match this area, and I read online that using a non-radius washer there can cause extra stress on the crank and may lead to breakage?

I was wondering if any of y'all running the 212s did anything special there? I do not know if the 99s have the same issue. Should I buy or make one, or just not sweat it?
 

maurtis

New Member
Dec 14, 2011
707
0
0
Kyle, TX
I looked more closely at the clutch itself and noticed that the inner edge is already radiused. This would work fine if I was going to mount the clutch flush with the crank, but I need to offset it a bit for chain alignment so I will make my own radius washer.