Filter
Top Products
OM-175 104 Page 16
6-5. Adjusting Engine Speed
Ref. ST-801 188-A / ST-801 209-A
After tuning engine, check engine
speeds with a tachometer (see
table).
If necessary
, adjust speeds
as
follows:
Start engine and run until warm.
Turn
Fine Adjust control to 10.
Idle Speed Adjustment
Move Engine Control switch to
Run/Idle
position.
1
Throttle Solenoid
2
Mounting Screws
3
Idle Speed Screw
Loosen mounting screws. Adjust
solenoid
position so engine runs at
idle speed. If necessary, back out
idle speed screw so solenoid can
be moved to correct position.
Tighten
mounting screws. Be sure
solenoid
linkage works smoothly
.
Turn idle speed screw for fine ad-
justments.
Weld/Power
Speed Adjustment
Move
Engine Control
switch to Run
position.
4 Weld/Power
Speed Adjust
-
ment Nut
5 Lock Nut
Loosen lock nut. Turn adjustment
nut
until engine runs at
weld/power
speed.
T
ighten lock nut.
Y
Stop engine.
2200
± 50
rpm
3700
± 50
rpm
1/4, 3/8 in
T
ools Needed:
3
5
4
1
2
T
op V
iew