Inspecting and Cleaning the Choke
*EASY*
Carburetor problems are often choke-related and arise from dirty or sticking linkages. Therefore, if the choke components can be kept in good working order, carburetor problems can be greatly reduced. Every six months you should clean and inspect the choke system as follows:
- Park the vehicle on level ground in a well-ventilated area with the engine OFF, the parking brake engaged, and the transmission in PARK (for automatic) or REVERSE (for manual). If the engine has been run recently, let it cool. Raise the hood.
- Remove the air cleaner and observe the position of the choke plate. It should be closed, covering the carburetor throat (opening). If the choke plate is not closed, the thermostatic choke coil needs adjustment or replacement. Have such work done by a professional automotive technician.
- Start the engine and spray the carburetor throat and choke plate with
aerosol carburetor/choke cleaner. Also clean and lubricate the external choke
linkage and throttle linkage
on the outside of the carburetor with the same aerosol cleaning solvent. Never
use an aerosol oil; it will attract dirt.
- Observe the motion of the choke plate as the engine runs. The plate should have opened slightly upon engine start, then continued to gradually open as the engine warmed. If choke plate opened too fast, too slow, or not enough, have a professional automotive technician replace the thermostatic coil and make any necessary adjustments.
- Attach the air cleaner and turn off the engine.
