I've done a little searching on this and haven't come up with anything. Regarding the '00 '01 cr 125's and 250's what are the differences in the alternator assemblies? I know that the cdi's will swap between harnesses under any combination of parts but is there really a difference? The first part of the part numbers are the same. Even with the 500. I want to make sure I'm not messing with timing or anything else by running a 125 alternator with a 250 cdi.