pistol-p
Jun 12 2009, 04:23 PM
hi, i'm new to forum i hope i'm in the right part. i've got a 07 450er and it has a hrc kit in it for two years now. it has started to backfire, and i was wondering if it could be the valves needing to be adjusted. it runs great just when letting off throttle it back fires.any suggestions are greatly appreciated, thanks.
450r FoR L!Fe
Aug 5 2009, 09:06 AM
valves. get them ajusted immidetly