Got a CBR600rr starter motor off a 2004 bike for £10 off ebay. Had to take around 0.25 inches off each of the posts on the mounting bracket and shorten the studs by the same amount. Even though the motor is a larger diameter than the stock item, it is the same length. Took less than an hour to do. It now turns the motor over many more times than the stock motor. Engine still won't start on the button though as I need to change the autodecomp cam.
Will post pics of the mod to the starter if anyone's interested and I've found out how to post them
Will post pics of the mod to the starter if anyone's interested and I've found out how to post them