Quick Fuel Technology Carburetor Main Body User Manual

Page 3

insert the fuel bowl screws. Tighten in a criss-cross pattern to a target
torque value of 30 inch pounds (2.5 ft. lbs.). It is important these screw
be tight as poor idle and off-idle performance will result.

13. Secondary installation is the same as the primary side.
14. Vacuum secondary applications, it will be necessary for you to remove

the secondary vacuum diaphragm assembly from your old main body. If
your carburetor had a choke assembly, you will have to remove the choke
assembly first. The vacuum diaphragm housing is held in place with
three screws. After removing the housing from the old main body, check
to be sure the small cork sealing gaskets is still positioned in a recess
provided in the housing. If this gasket will not stay in position, use a
small amount of glue or grease to hold it in position for re-assembly. (Be
sure none of the glue or grease protrudes into the vacuum passage) Install
the vacuum housing on your new main body using the old screws.
Tighten the front screw until it contacts the housing. Then tighten the
lower rear screw, the center screw and finally tighten the front screw
completely. Do not overtighten these screws. You are simply tightening
the screws enough to seal the housing to the main body. Maximum
torque is 18 inch pounds. Re-attach the e-clip to secure the diaphragm
stem to the throttle shaft lever.

15. You are now ready to reinstall your upgraded carburetor! There are

numerous outstanding books available to help you tune your new
carburetor. We highly recommend you purchase one of these books as
they will walk you through the fine tuning process step-by-step.
Recalibration will enable you to achieve the maximum performance
potential available from your new state-of-the-art main body.