Hello together, I got a scooter Zhongyu (relatively similar to REX RS450). Supposedly he jumped on before last winter. – Ignition spark is strongly present – compression approx.14bar (ok) – inlet / outlet valve set to 0.10mm – carburetor cleaned and checked – air filter is free – after a long start attempt candle is wet The engine does not make a single beat. Petrol is in the float chamber. No chance with starter spray (either in the air filter, carburetor suction, or directly in the The difference to the REXR RS450: there are other (my unknown) parts installed: On the gas Bowden train is an electrical measurement (black box), on the suction nozzle is apparently a vacuum measurement (black thick hose) and both cables lead to a part that is apparently missing: was on a green rubber suspension. There is only the plug. What is missing there? Can the time of time change?