Carburetion/Fuel Questions

Front

The function of the venturi in a carburetor is to: Create a restriction, Speed up airflow velocity, Create a low-pressure area in the carburetor

Back

All of the above

Front

Carburetor designs are more complex on engines that run

Back

varying speeds

Front

An engine running on a lean air fuel mixture will

Back

run hotter than one running on a rich mixture

Front

An engine running on a rich air fuel mixture will

Back

smoke black, foul spark plugs, develops carbon deposits in the combustion chamber.

Front

The function of the choke is to richen the air fuel mix by

Back

reducing the amount of air to the mix.

Front

The function of the main jet air bleed and fuel nozzle is

Back

premix air with fuel in the nozzle to aid in atomization.

Front

The pilot circuit on a small engine carburetor controls the

Back

idle circuit air fuel mixture

Front

The transition circuit of a small gas engine carburetor

Back

adds fuel to the carburetor during the transition from idle to full throttle

Front

A spark plug with a black electrode indicates the engine's air fuel mixture is

Back

too rich

Front

A spark plug with a gray electrode indicates the engine's air fuel mixture is

Back

too lean