Anyone out there with an 89 DT125R which they know still has the original block in it. I've just checked mine and it has 3MB00 on it. I cant find anything on tinterwebz that says this is right.
I need to do the top end and know that the piston sizes differ 88-89 (56.40mm) and 90 onwards (56.00mm).
Then i guess then ive gotta see if its already been bored total PITA getting a 2nd hand bike, i wanna know everything :)