Page: 4-64
WALKER MANUFACTURING COMPANY
July 2006
SERVICE INSTRUCTIONS
Inserting Feeler Gauge
(Engines Without Stop Screw)
b. On engines with a stop screw, pivot the throt-
tle shaft and plate into the “Full Throttle” posi-
tion, so the tang of the throttle shaft plate is
against the end of the high-speed stop screw.
Refer to Throttle Details photo. Temporarily
clamp in this position.
3. Rotate the governor lever and shaft counterclock-
wise until it stops. Use only enough pressure to
hold it in that position.
4. Check how the end of the throttle linkage aligns
with the bushing hole in the governor lever. Refer
to Throttle Link in Center of Hole photo. It should
fall in the center of the hole. If it doesn’t, perform
the adjustment procedure as follows.
Throttle Link in Center of Hole
B. Setting the Initial Adjustment
1. Check the split where the clamping screw goes
through the governor lever. Refer to Checking
“Split” of Clamp photo. There should be a gap of
at least 1/32". If the tips are touching and there is
no gap present, the lever should be replaced. If not
already installed, position the governor lever on the
cross shaft, but leave the clamping screw loose.
Checking “Split” of Clamp
2. Follow the instructions in Step 2 of Checking the
Initial Adjustment, then reattach the throttle linkage
to the governor lever with the bushing clip. It is not
necessary to reattach the damper or governor
springs at this time.
3. Insert a nail into the hole in the top of the cross
shaft. Using light pressure, rotate the governor
shaft counterclockwise as far as it will turn, then
torque the hex nut on the clamping screw to
6.8 N·m (60 in. lb.). Refer to Adjusting Governor
Shaft photo. Make sure that the governor arm has
not twisted up or down after the nut has been
tightened.
Adjusting Governor Shaft
4. Verify that the governor has been set correctly.
With the linkage still retained in the “Full Throttle”
position (Step 2), unsnap the bushing clip, sepa-
rate the linkage from the bushing, and remove the
bushing from the lever. Follow Steps 3 and 4 in
Checking the Initial Adjustment.
Feeler Gauge
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