Demon Fuel Systems 421441 - Manual (Page 4)

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Figure 8
9. Install the endplate/spring combination. The spring slides into the u-shaped endplate with the fast idle
speed screw (Fig. 10) and then slide this onto the left (passenger) side of the primary throttle shaft. When
installed, the head of the fast idle speed screw should be facing towards the base of the carburetor and the
threads should be pointing upward. Now install the outer bracket with the double D-shaped hole onto the
end of the shaft. It is advisable to keep the long straight portion of the spring unhooked and after the outer
bracket is secured with the Phillips head screw to the shaft, use your little finger to lift the straight portion of
the spring up and drop it into the slot on the right side of the outer bracket (Fig. 11). If installed properly you
should be able to push the fast idle speed screw forward (up) and have it return smoothly.
Figure 9 Figure 10
Figure 11