BB Float System

FLOAT LEVEL ADJUSTMENT

This adjustment is made with air horn gasket in position and air horn inverted on flat surface.

1. Carefully bend float arms vertically until floats appear level in relation to each other.

2. Turn the top with the float upside down. The floats should be level with the edge of the top. Make sure both floats are the same. Also check that each float is centered, or it might scrape the edge.

3. Bend float button, which contacts the float needle, until the floats just touch the top portion of the gauge

4. Now bend arms horizontally until each float is centered between the gauge legs. Tilt Air Horn assembly 90 degree each side and check that floats do not touch gauge legs. This insures the floats will not rub sides of float bowl.

FLOAT TENSION ADJUSTMENT

To insure proper fuel level and sufficient entry of fuel into the bowl under high speed operation the float tension adjustment must be made as follows: bend the float tang, at the rear of the float, against the balance spring to lessen the drop and away from the balance spring to increase the drop. The tension is correct when the distance from the bottom of the air horn gasket to the bottom of the floats, with the air horn assembly held in an upright position, is equivalent to the distance marked between arrows on the carburetor float gauge.