carburetor 21N1-12 21mm tuning for Simson S50, S51, S53, S70, S83, SR50, SR80, KR51/2

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21mm tuning carburettor in BVF 16N1 look. In addition to the regular connections, there is a large screw cap at the bottom of the carburettor bowl. So it is possible to change the main jet without major disassembly.

exactly fitting throttle slide

classic float made of sturdy brass

w/ "16N1-11" inscription

closed recirculation system for 100% filtered intake air

#110 main jet