Choke Pulloff Operation:

Mounted on the carburetor, this vacuum-operated device opens the choke to a specified position when the engine is cold to prevent over-choking and flooding. This results in improved driveablity and lower vehicle emissions. A second choke pulloff pulls the choke plate completely open when the engine has reached normal operating temperature can sometimes be found on the carburetor.
How To Instructions:
Inspect
- Check for obvious problems.
Test
- Give it an in-depth diagnosis.
Replace
- Out with the old, in with the new.