Choke Diaphragm Connector Rod

Fig. 10 Choke diaphragm connector rod:

Remove tamper resistant cover, if equipped, by drilling out the two rivets. Apply a vacuum of 15 or more inches of Mercury to diaphragm to fully depress diaphragm stem. An auxiliary source like a distributor test machine can be used for this purpose. With air valve closed, adjust connector rod to give .040 inch clearance between air valve and stop, Fig. 10.
If choke diaphragm connector rod adjustment is changed, the vacuum kick adjustment must also be reset.