Hello all, I have an Aprilia SR50 Ditech from the year 2012, mileage 5600 km. The scooter jumped very badly lately. When it was running, then usually only a few seconds and afterwards it went out directly, as well as when you turned on the gas train. After the disassembly a lot of me that the crankshaft could only be rotated very jerky. The connecting bearing was defective. So I installed a new crankshaft and also a new cylinder incl. piston and everything again wave and piston run first cream. After the first start the scooter purred like a kitten for a few seconds, but then it went out again. Same problem after trying again. Now it doesn’t work anymore. Spark plug is new. Thought about the compressor or the control unit. There is no error in the fault memory. Does anyone know advice?