8. CHOKE COVER TENSION

Function

The Zenith Carburetor is equipped with an automatic choke which is controlled by an electrically heated bi-metal spring. A connecting rod keeps the choke under the tension of the spring which responds to any change in temperature. When the engine is cold, the spring holds the choke closed. When the engine starts, the gap control unit opens the choke to prevent over enrichment.

Problems

If the choke cover tension is not properly adjusted the following could occur:

1. Warm up problems.

2. Stumbling, stalling, hesitation.

Adjustment

1. From the factory, both choke covers are adjusted 5 mm. in the rich direction. (See Fig. 1)

2. Re-adjustment is required at the second vehicle service. (See Fig. 2)