Demon Fuel Systems 421441 - Manual (Page 6)

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11. Now check the operation of the choke. First, double check that all of the screws that were installed are tight
and that the 1/2" cotter pin and key are secured (ends bent outward on the cotter pin) so they will not come
out. Open the carburetor linkage to wide open and pull the choke mechanism back (towards the rear of the
carburetor - Fig. 15). The chok
e flap should now be shut and the throttle should be in the “fast idle”
position. If you look at your idle speed screw on the left (driver’s) side linkage of the carburetor, it should
not be touching the bracket at this time. Now, push the choke mechanism forward and this should fully
open the choke (flap vertical). When you operate the throttle linkage again, the carburetor should return to
its normal idle position with the idle speed screw on the left (driver’s) side touching the throttle linkage.
Figure 15
NOTE: IF THE CHOKE AND LINKAGE ARE NOT OPENING AND CLOSING PROPERLY AS LISTED
ABOVE GO BACK THROUGH AND DOUBLE CHECK YOUR INSTALLATION INSTRUCTIONS OR
CONTACT OUR TECHNICAL DEPARTMENT DIRECTLY AT 270-901-3346 BEFORE
PROCEEDING ANY FURTHER.
12. Re-install the carburetor on the engine, reconnecting all fuel lines, vacuum hoses, throttle linkage, return
springs and any other components were removed for installation.
13. Find a place in the vehicle to mount the choke cable and run it through the firewall into the engine
compartment. Make sure to seal the hole through your firewall with a rubber grommet (available at any
auto parts store). Avoid making contact with any objects that may get hot, move or have electrical power
connected to them. Route the cable to the bracket on the side of the carburetor, avoiding sharp turns that
could bind the cable and securing the cable as needed.
14. Get in the vehicle and depress the throttle to the floor, pull the choke cable knob out and release the
throttle. Check to see that the choke flap is closed and the vehicle is ready to start. Before starting the
vehicle open and close the choke system a few times to make sure there is no binding in the mechanism.
Make certain that when choke cable is pushed in that the choke flap is completely open.
Note:
The Choke linkage will only close while you depress the throttle. If you try to close the choke
flap without depressing the throttle you can damage the linkage. Now it is time to start the
vehicle and check for leaks and proper operation.