Carburetor

The utility model relates to a carburetor, including the carburetor body, hinder throttle shaft, throttle shaft subassembly, this internal float cavity that is equipped with of carburetor, be equipped with float and triangle needle valve in the float cavity, carburetor this internally still be equipped with balancing hole, main air metering hole and be used for connecting the connecting tube of balancing hole and float cavity, be equipped with a last fixed axle that runs through the float chamber extremely down of follow in the float chamber, the float middle part is equipped with a connecting hole, this connecting hole of float accessible is arranged in on this fixed axle, it opens and close the piece to be equipped with one on the fixed axle. Be equipped with the fixed axle in the float chamber to the float middle part is equipped with the connecting hole to this fixed axle to setting up down from last, and this connecting hole can slide under the fixed axle is highest with fixed axle looks adaptation, float, has guaranteed the sport efficiency of float, and the slip can not receive the influence of any hindrance and other component on this fixed axle.