Two good motors came with some equipment I purchased recently but I'm having trouble identifying the model year bikes they came from. I would really like to know the model year each came from as well as the model year ranges they will fit in. Any help would be very much appreciated. Thanks.
GSXR 750, engine serial # R731-104030 (was told it fits '01-'02??)
Yamaha R6, engine serial # J503E-025128 (fits '98-'00???)
