sizing

I replaced a warped rear about 6 months ago. Now, I have a warped front rotor. Bars shake during freeway on ramp launch, I can no longer take my hands off the bars and coast. I can spin the front tire and clearly ID offending rotor. I have fresh pads, fork seals, and head bearings...

I have decided to pursue a new project. Always wanted to learn to weld and have a turbocharged bike. Got the bike and always wanted to learn to weld. The big question is, how do I determine what size carb and jets I need for a draw through turbo on a stock motor? I know almost everything about...

Is there really any advantage to running a carburetor with a larger throttle bore area than the cross section area of the intake port? I hear of people using 39mm flat slides and such, or even larger. The stock intake port is a 30mm x 40mm oval, and at the intake surface it has a cross section...