3. FLOAT LEVEL

Function

To establish the fuel level in the carburetor. The Zenith carburetor is highly sensitive to the float level.

Problems

1. Incorrect float {fuel) level will cause:

a. Fuel consumption

b. Lean or rich fuel mixture

c. Stalling and hesitation

d. Hard hot starts

2. Float filling with fuel and sinking‹will cause flooding.

3. Fuel needle valve sticking‹will cause flooding.

4. 1972 Models with spring-loaded ball needle valves‹ball can fall out.

Adjustment

1. Remove plate block section. (See Fig. 1)

2. With gasket in place, measure from plate block to bottom of float. (See Fig. 2)

3. Adjust float level by changing thickness of seal ring under the needle valve assembly. (See Fig. 3)

4. Check data and adjustment guide on page 34.

5. Seal ring changes