the next step in the modification of the china clutch, is to cut a m 4 thread in the base plate at the side of the arms of the clutch in order to install small m 4 worm screws there. So you can adjust the distance of the coupling arms. The diameter of the Chinaclutches is usually 75-77mm and that is not enough for a good function. The best performance is achieved with 0.5 - 1mm distance to the bell and it can also be compensated for the wear without a small bell.
Get your kick with 2 stroke mix