General 5 Star ST step thru mopeds (Sachs 505 engine), made by Jui Li: General 5-Star ST wiring “early” version is functionally the same as the top tank models, because of the 3-wire Bosch magneto, configured to charge the battery from the ignition ground. With this version, if you...
because some of the fresh charge will escape, while some fresh pure air will enter the crankcase, diluting the mixure. At lower rpms, due to momentum, the leak has more time to happen, so the engine will feel weak. At high rpms the weakness won’t be that bad. One trick...