Hi guys,
I have a motorbike with a small two stroke motor. While it will still respond to the throttle the motor will run up to top speeds with the throttle in the off position. What can be wrong? Can you pull up a diagram of a small carburetor? Thanks for any response. Tom

Throttle slide - MopedWiki

Then click on the Image to enlarge, I think slide or throttle cable may be sticking.