broken throttle Quick fix
I bought the 80cc motor kit and within two weeks the throttle was busted! (stupid plastic)
First thing I did was to use hot glue (three applications) to support the back of that little tab and it worked for a while. I wanted something more permanent so I went to the auto parts store and started to look into epoxies but I found the stuff called "Quick Steel" looks like "Mighty Putty" only gray and black I used a little bit and made a backing where the hot glue was. Once it dries you just sand it to fit into the track then reinstall good as new.
Hope it Helps. I am also a proud member of the 20 MPH. club