Automatic Choke

The choke valve is linked to the bimetal housing through the choke lever. The choke valve is kept opened at the degree corresponding to the ambient temperature by means of the bimetal force. Bimetal housing is set at 1 notch to rich side, as marked on choke housing (10 degrees per notch).

Fig 1: Checking and Adjusting Choke Cam Index

Courtesy of VOLKSWAGEN GROUP OF AMERICA, INC.

If necessary, adjust by bending fast idle arm.