Search results

Need some help to find a solution, i gutted the header and the muffler at the end of summer last year, remove AIS and put block off plate, ad PC5, BMC air filter and 16t front sprocket. the bike run great but when i pass 9000 rpm it backfire on decel ( large pow! ) and i can't stand it and need...

I Have a 2007 FZ1 and done a couple mod and now i have backfire pass 9000 rpm when i cut the throttle. Mod are: - Bmc air filter - 16t front sproket - gutted headers - gutted stock pipe - ais block off plates My question is, will...