Lemonkey788Standard MemberPosts: 2
Joined: Oct 2020
Joined: Oct 2020
Firstly thanks for accepting me on this forum. I am a novice on repairing bikes so I need all the help i can get.. 
I have recently acquired a 1979 ST70 which is in generally good condition. I was in the process of giving it a service and had to remove the flywheel which I did with an extractor however the threads on the crankshaft are damaged and the end of the shaft seems to have flared slightly i can only assume that the previous owner had used a hammer to get the flywheel off .My question is any tips or advice how to repair the thread and remove the slight flaring on the shaft and what is the thread pitch of the crank. Thanks
I have recently acquired a 1979 ST70 which is in generally good condition. I was in the process of giving it a service and had to remove the flywheel which I did with an extractor however the threads on the crankshaft are damaged and the end of the shaft seems to have flared slightly i can only assume that the previous owner had used a hammer to get the flywheel off .My question is any tips or advice how to repair the thread and remove the slight flaring on the shaft and what is the thread pitch of the crank. Thanks