i have got a deifferent crankshaft a CPH high mass crank shaft for speedfight 2 , it says up to 2004 , witch mine is a 2001 , i put it all in and tryed to put free wheel on and on my original crank shaft it has got a raised bit that slots into the fly wheel but on the new crank theres a hole insted of a raised bit and will not fit , HELP please
Hi You need to buy a woodruff key, very cheap just get one off ebay then heat the end of the crank and knock it in pretty simple.
pics m8. makes things easier as said, it is a woodruff key and just nocks out of the old crank with a screwy/hammer... just swap it over. as for why your changing cranks wiht no idea what a woodruff key is i wont ask. i can but wish you the best of luck