Kohler 4CKM Service Bulletin

3
SB-555 5/96
Magnetic Pickup
(See Figure 3 or Figure 4)
The magnetic pickup provides an AC signal to the control
unit. Minimum voltage output from the pickup during
engine cranking should be 1.75 VAC.
Air Gap
(See Figure 3 or Figure 4)
The air gap between the ring gear and pickup should be
0.040 inches.
NOTE
Measure the air gap at 3 or 4 places to get an accurate
reading.
To adjust air gap, loosen the locknut and turn pickup
clockwise until it just bottoms on the ring gear, then back
out 3/4 turns.
Hold pickup in this position while retightening locknut.
If loss of signal or failure of the pickup occurs while
running, the governor control will de-energize the
carburetor shut-off solenoid to stop the engine.
2
1
4
3
TP-5572-6
1. 0.04-in. air gap
2. Top of flywheel ring gear tooth
3. Magnetic pickup generates an AC voltage
4. Locknut
Figure 3. Magnetic Pickup Air Gap
(4/5CKM/CKMR and 6.5RMY)
1
2
TP-5572-6
1. Ignition coil
2. Magnetic pickup
Figure 4. Magnetic Pickup (7CCKM/CCKMR)

Kohler 4CKM Specifications

General

Brand	Kohler
Model	4CKM
Category	Inverter
Language	English