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Hi again everyone- I have a question to anyone who has a 904 up grade. When you had 904 done did you keep 790 crank? And I if you did is there more vibration? Thanks!



Stock bottom end, replacement clutch pack and springs, jetted up the carbs, pod filters, air injection delete....no noticeable added vibes. 92/93 octane gas works just fine.

Life may begin at 30, but it gets really interesting around 150!