Hey, I have the following problem with my REX RS450: My problem started yesterday. I started the scooter normally by e-starter and drove briefly where. Arrived there, what I wanted to do and wanted to go off afterwards. However, the scooter suddenly stopped starting with the e-starter. via kickstarter the scooter starts without any problems and then also does not run by e-starter. So I thought that the starter engine is defective so I ordered a new one yesterday, which h So I just changed it, but it still doesn’t work. If I try to start the scooter by e-starter it sounds pretty much like this: https://m.youtube.com/watch?v=jU8POJjNW90 I also took off the Vario cover and tried to start the scooter by e-starter. The starter run went out without any problems and the pulley turned without any problems. The only thing that was that the wedge belt didn’t rotate directly. I don’t know if it should be that way or not. What else could that be? The battery is quite old, as far as I know. However, the starter motor turns. I would be happy about your answers! Sincerely Daniel