short and sweet. 93 rm125 brand new top end fmf fatty pipe, fmf shorty silencer, no airbox lid. Bike has no low end power. it will not take off from a dead stop . I have to roll it on a little hill and let the clutch out and pin it until it catches up to it self and then it rips hard mid to full throttle. i used fmf's website for jetting suggestions. please help.