Altitude Compensator: Service and Repair

Fig. 17 High altitude compensator (HAC):

INITIAL INSTALLATION

1. Remove the plugs from nipples "A" and "B", Fig. 17.
2. Connect the high altitude compensator to nipples "A" and "B".

ADDITIONAL AIR SUPPLY FOR LOW ALTITUDE CARBURETORS

1. Replace plug "A" with the shorter plug "B" to open the additional jet air passage into the carburetor throat, Fig. 17.