7-6. Adjusting Engine Speed
2200 ± 100 rpm
3700 ± 50 rpm
6
5
Left Side
4
10 | 8 | 7 | 1 |
2
911
3 2
Top View
Tools Needed:
1/4, 3/8 in
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.
Remove top cover to access speed adjustments.
Idle Speed Adjustment
1Throttle Solenoid
2Mounting Screw
Loosen two mounting screws.
3Governor Arm
4Carburetor
5Idle Speed Screw
Pull governor arm away from car- buretor and hold while making the following adjustment:
Turn idle speed screw until engine runs at idle speed (see table).
Release governor arm. Place Engine Control switch in Run/Idle position.
6 Carburetor Stop
With solenoid energized, slide sole- noid until idle speed screw just touches carburetor stop. Tighten solenoid mounting screws.
7 Governor Arm Extension
Check for smooth operation, and readjust solenoid position if necessary.
Weld/Power Speed Adjustment
Place Engine Control switch in Run position.
8Weld/Power Speed Rod
9Locking Nut
Loosen nut.
10 Adjustment Nut
Turn adjustment nut until engine runs at weld/power speed. Tighten locking nut.
YStop engine.
11 Sensitivity Spring
See engine manual for governor sensitivity adjustment.
Reinstall top cover.
