I have a 125 ROK shifter engine that was built by a company that mostly builds for sprint t racing but I’ll be road racing. Do I need to have the timing changed? I familiar with the jets just not sure on the timing! Thanks
I have a 125 ROK shifter engine that was built by a company that mostly builds for sprint t racing but I’ll be road racing. Do I need to have the timing changed? I familiar with the jets just not sure on the timing! Thanks