Measure the distance between the bottom of the floats and the bottom of the air horn, meaning the portion of the air horn that touches the body of the carburetor when installed with a T-scale. The factory measurement depends on the model of the BBD as found on the tag mounted to the c...
Adjust the float up or down by bending the small float support arms (tangs) on both sides, using a pair of needle nose pliers. After the adjustment, put your fingers on the pivot and needle and check the measurement again. Place the small gasket shield back on the air horn top. Install...
Remove the throttle cables. Loosen all four Allen bolts in the carburetor plate. Wiggle the carburetor to break the seal on the gasket before you lift it up. Remove the overflow tubes from the bottom of the carburetor. Lift the carburetor free from the frame and pass it between the jugs o...