Page: 4-70
WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Adjust Idle Mixture
6. Hold throttle lever against idle speed adjustment
screw and readjust idle to RPM shown below:
a. 1200 RPM - Governed idle spring Part
#805453 (red).
b. 900 RPM - Governed idle spring Part
#805454 (white).
7. Release throttle lever. Note RPM.
8. If necessary, use tang bending Tool, #19352, and
bend governed idle tang, to obtain RPM shown:
a. 1750 RPM - Governed idle spring Part
#805453 (red).
b. 1100 RPM - Governed idle spring Part
#805454.
Adjust Governed Idle
9. IF CARBURETOR IS EQUIPPED WITH AN IDLE
MIXTURE LIMITER CAP, INSTALL AT THIS TIME.
a. Position limiter cap so that stop(s) on limiter
cap are at mid point between stop(s) on car-
buretor body.
b. Press limiter into position using knock out pin,
Tool #19135.
Install Limiter Cap
10. With equipment control lever in SLOW position and
engine running at governed idle RPM, use tang
bender, Tool #19352, and bend throttle restrictor
tang so that tang just contacts governor lever.
Adjust Throttle Restrictor
11. Move equipment control to FAST position. Engine
should accelerate smoothly.
a. Readjust idle mixture valve 1/8 turn richer if
necessary.
Lean
Rich
Mid Point
Governed
Idle Tang
Tool #19352
Limiter
Cap
Tool
#19135
Throttle
Restrictor Tang
Tool
#19352
Governor
Lever
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