9-7. Adjusting Engine Speed (Kohler-Powered Units)
2200 ± 50 rpm
3700 ± 50 rpm
1
5
4 | 2 |
|
3 
Top View
After tuning engine, check engine speeds with a tachometer (see table). If necessary, adjust speeds as follows:
Start engine and run until warm.
Remove wrapper to access speed adjustments.
Idle Speed Adjustment
Move Engine Control switch to Run/Idle position.
1Throttle Solenoid
2Mounting Screws
3Idle 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. Tight- en mounting screws. Be sure sole- noid linkage works smoothly.
Turn idle speed screw for fine adjustments.
Weld/Power Speed Adjustment
Move Engine Control switch to Run position.
4Weld/Power Speed Adjustment Nut
5Lock Nut
Loosen lock nut. Turn adjustment nut until engine runs at weld/power speed. Tighten lock nut.
YStop engine. Reinstall wrapper.
Tools Needed:
1/4, 3/8 in
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