Lose your standard filter and buy a UNI filter (make sure you oil it). Your exhaust, either port and polish the inlet header until its smooth or widen the heaper pipe to 32mm. Mod you muffler by taking OUT the...
DIY MINI-BIKE CONSTRUCTION IT'S HARD TO FIND YOUR DREAM MACHINE, SO JUST MAKE IT!!!! Everyone know how fun it would be to have a mini bike. But how much funner would it be if you could make it yourself, so...