11. CHOKE GAPS

Function

The choke gap control opens the choke flap slightly to allow the engine to breathe after starting.

Problems

1. Choke flap or linkage binds. (Flap won't close or binds and won't open.) Causes rough running and possible stalling when engine is cold.

Adjustment

1. Set carburetor at fast idle by actuating choke step cam. To do this, crack open throttle (See Fig. 1)

2. Close the choke flap by lifting choke relay lever. (See Fig. 2)

3. Release throttle.

4. Start engine without touching throttle.

5. Lift relay lever at bottom of choke rod to its full up position. (See Fig. 2)

6. Using a rod of proper diameter, measure the gap present between the lower flap of the choke and the carburetor housing. (See Fig. 3)

7. Adjust at the adjusting screw on diaphragm housing. (See Fig. 4)