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Old 08-10-18, 23:54
Ferg Ferg is offline
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Join Date: Jul 2018
Location: Faversham, UK
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Bigger key for RHS crankshaft keyway!

Anyone else has this issue?
Looks like it may have left the factory with the keyway being on the extremities of a proper transition fit....
Interestingly the KTM 640 had tapered woodruff keys on ether side of the crankshaft, which pretty much eliminated the likelyhood of Key / keyway damage.

Original key on left and new key made from 8x8mm key steel on right in attached photos. (7x7mm key steel too loose to make new key from)

Last edited by Ferg; 07-11-18 at 17:24. Reason: Got key steel sizes wrong (changed from 9x9 to 8x8)
 

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