i am looking for a rear backing plate for either a 1984-1986 RM250 or 500 - i have a 1982 465 plate and wanted to know if it is possible to bore it to accept the larger 17mm axle - thx.
lacava has issues! Type in your question in the goggle search, or hope some one has that imformation laying around. Also, a shop manual would cover this, and the rebuild.