Hello today I have built the variomatics apart with my scooter, but unfortunately I noticed that behind the thread for the screw so with this “gear rod” on the crankshaft the beginning is about 0.75cm dirty. So that it is a little round, but the scooter goes on with Kikstarter and E starter. How can you repair it or then you have to replace the entire crankshaft? And should I no longer drive with the scooter as long as that is so? Because I need the scooter e Actually to get into work. Today I drove with it and sometimes a noise comes out of the variomatics as if the pulley is shaking back and forth. Is that bad? What should I do? PS: I have a JiaJue JJ50QT-17B 2 bar scooter 50ccm Thanks for every answer.