Expertise for the conversion for Sachs ZX125 / ZZ125, vehicle type: 660, from model year 1997, ABE-Nr. H703, to 17kW / 120km / h, without conversion parts ONLY for vehicles with original registration before October 2000. For the conversion, original Sachs conversion parts are required. Removing the outlet reduction. Replacement of idle nozzle, throttle valve, spark plug.