What to know about the Carburetor:
Before fuel injection systems became main stream, the air/fuel mixture was controlled by a carburetor. The carburetor is fixed on the top of the intake manifold, and has both air and fuel inlets. The air inlet is sometimes a duct attached to the carburetor or can be just an air filter housing mounted directly on top of the carburetor. The fuel is supplied by a fuel line coming from the fuel tank. The carburetor is in charge of atomizing fuel and spraying it into the air that enters the intake manifold. There are two adjustment screws on a carburetor that control the idle speed and the fuel mixture when running. When the carburetor can no longer be adjusted to make the engine run smoothly, it may be time to change the carburetor.
Facts to Note:
A performance carburetor can be fixed to increase power, or a fuel-efficient carburetor can be fixed to save on running costs.
How to Fix:
The battery is disconnected and the air filter is detached
The carburetor is removed and the new carburetor is fixed
The new fuel filter is installed and carburetor is checked for leaks and adjustments
The battery is connected and the air filter is installed
The vehicle is road tested for proper operation
Have the carburetor adjusted at every maintenance interval. If the carburetor will not adjust correctly, change it with a high quality part. The labor cost to rebuild a carburetor is prohibitive and often is more expensive than installing a replacement.
Common symptoms indicating you may need to change the Carburetor:
Engine runs rough and stalls
Engine will not start
Engine leaks or smells like raw fuel
Backfiring or popping through the exhaust
Importance of this service:
SEE ALSO:How to Fix a Leaking Fuel Injector
Without a right operating carburetor, it can be extremely hard to keep the engine running reliably. This can bring about dangerous situations when driving or costly tows if the engine stalls.