Description:

#78 main jet,#34 idle jet,come with electric choke,accelerator pump and oil drain pipe. Manifold intake:18mm/0.7",the outside diameter connected with air filter:40mm/1.57". Replacement for 4 stroke GY6 49cc 50cc engine.such as:TAOTAO,ROKETA,SUNL,JONWAY,JMSTAR,TANK,PEACE,Dongfang,Kazuma,JCL,BMS. Accelerator pump helps to enrich the air fuel mixture at the time of an initial throttle change to help make a smooth transition from idle to acceleration by adding a small amount of fuel while still at low rpm and slight throttle opening.