Hello I am having issues with my motor redlining and over revving only when I pull in the clutch. I have tried everything to fix it. Checked for vacuum leaks around the carborator and intake and put gasket seal everywhere, I tried changing out the carburetor, I messed with the throttle cable it isnt sticking. The bike runs fine when the clutch is out but as soon as I pull the clutch in it starts to redline and if I dont kill the motor it would blow itself up. What am I doing wrong? Its a 80cc 2 stroke motor. I didnt originally have this problem.