Adjustments & Tuning
Choke Adjustments - Choke Indexing
The electric choke cap is adjustable for varying conditions and personal preference should you desire. The normal choke
setting is for the choke plate to just barely close at 72 degrees Fahrenheit. Loosening the three screws securing electric
choke spring will allow the choke cap to rotate. Rotating the choke cap clockwise reduces the choke effect (lean) whereas
rotating the choke cap counter-clockwise increases the choke effect (rich).
Clockwise Rotation Leans Choke (closes higher temperature, opens faster)
!!
Clockwise rotation reduces temperature for choke to close and shortens the time for the choke plate to completely open. Full
clockwise rotation the choke will never close. Counter-clockwise rotation raises the temperature for the choke to close and
lengthen the time the choke plate is closed, so it will take longer for the choke plate to open to full vertical position.
!Fast Idle Speed
"The fast idle speed can be altered by adjust the fast idle speed screw, located as shown below. Easiest access is at wide
open throttle with the engine off. Ordinarily a good fast idle speed is approximately 1,600 RPM with the engine at normal
operating temperature. The correct procedure to check the fast idle is to manually open the throttle, close the choke plate
with your finger, release the throttle lever, then release the choke plate. This sets the fast idle cam. Start the engine without
touching the throttle lever or accelerator pedal. When the engine starts it will be at fast idle and you can adjust accordingly.
The fast idle screw has a 5/16” hex head however there is also a slot cut in the head so it can also be adjusted with a screw
driver. Access is somewhat limited especially with vacuum secondary carburetors so often times the easiest access is by hold
the throttle wide open (with the engine off of course) then either turn the screw clockwise to increase the fast idle speed or
counter-clockwise to lower the speed. Having an
assistant hold the throttle wide open makes this procedure much easier.
Quick Fuel Technology®
129 Dishman Lane
Bowling Green, KY 42101
270-793-0900
www.quickfueltechnology.com
Rotate to adjust
Loosen three retainer screws to adjust choke cap
Fast idle speed screw clockwise
increases fast idle RPM speed
(12 pages)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Commentaires sur ces manuels