Tuning carburetor Mikuni VM20 with 20mm passage. 2-screw model, the main jet can be replaced externally without dismantling, suitable for Zündapp, Honda, Simson geared mopeds.
Main jet: 180 Idle jet: 25.0 Needle: 4J13 Gas slide: 2.0 Mixing tube: 239 0-6 Needle valve: 1.5 50mm stud bolt spacing 43mm air filter connection







