Question

If you lean the mixture and the engine backfires, what should you do?

A. Reduce throttle
B. Lean the mixture further
C. Enrich the mixture
D. Shut off the fuel supply

Answer 1

If you lean the mixture and the engine backfires, you should enrich the mixture.

Step-by-step explanation:

If you lean the mixture and the engine backfires, you should C. Enrich the mixture. Backfiring occurs when there is not enough fuel in the mixture and it ignites in the intake or exhaust system. By enriching the mixture, you are adding more fuel to prevent the backfire.