Float Drop

Invert air horn, gently lift up float and measure clearance between needle valve and float arm. See Fig 1. Clearance should be .066-.078" (1.67-1.99 mm).
Adjust clearance by bending outer float tab "B". See Fig. 4. Install needle valve clip after completing float adjustments.

Fig 1: Float Drop Measurement

Fig 2: Float Drop Adjustment Bend outer tab "B" to adjust.