Rockrtx
Member
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 a solution.
1. Can i ad a muffler insert in it to remake back pressure in the muffler?
2. will a slip on yoshimura R-77 cure the backfire problem?
1. Can i ad a muffler insert in it to remake back pressure in the muffler?
2. will a slip on yoshimura R-77 cure the backfire problem?