I have an fmf sst pipe on my 08 rm250, and the bike has a lean sound at throttle. It also blows a lot of smoke (premix smoke) until it's warm. Anyone know jetting for this pipe on a stock motor?
I have an fmf sst pipe on my 08 rm250, and the bike has a lean sound at throttle. It also blows a lot of smoke (premix smoke) until it's warm. Anyone know jetting for this pipe on a stock motor?
Sst pipe is a bad design that causes detonation.
The rm250, is prone to detonation stock.
Good luck
That's what I've heard. 50 bucks says it's jetted rich to keep it from detonating worse. I guess I see a new pipe in my immediate future.