Stuck floats are fairly common, particularly on engines used in racing applications where high G forces can cause the float to bind against the float bowl. Repairing a stuck float involves removing the float bowl to access the float, bending the float's swing arm to relieve the binding, and reassembling the carburetor. These instructions are for the popular Holley carburetors; others are similar.
Be sure the engine is cool before you begin. Remove the fuel line from the fuel inlet on the float bowl using an open end wrench.
Remove the float bowl from the carburetor body by removing the four attaching bolts. It may be necessary to tap lightly on the float bowl to loosen it.
Reach inside the float bowl, and bend the float arm to relieve any binding. Maintain at least 1/8-inch clearance between the float and the float bowl.
Reattach the float bowl to the carburetor body, using new gaskets if necessary. Be careful not to over tighten the attaching bolts; hand tighten only.
Reattach the fuel line to the carburetor.
