How Do You Adjust The Automatic Choke On An Aircooled Volkswagen (VW) Beetle?
• The engine must be cold to make this adjustment. • Remove the air cleaner. • Find the automatic choke. • It is the round object on the upper right-hand of the carburetor. • There is a wire coming to it from the positive side of the coil. • The choke is held in position by a triangular ring clamp and three screws so it can be loosened and rotated for adjustment. • Pull the throttle arm on the left side of the carburetor down to free the cam (little step arm) that the screw at the top of the throttle lever rests on. • With the engine cold, the butterfly valve should be closed. • As the engine warms up, the coil inside the automatic choke uncoils, opens the butterfly valve, and moves the cam to reduce the idle speed. • Release the throttle arm so that the return spring snaps it back. • The little screw at the top of the throttle arm should now rest on the top step of the stepped cam. • This sets the hi-idle, which is needed together with the choke on a cold engine to provide sufficient
