Kohler — Stator Continuity and Resistance Check, 1 Phase
Testing & diagnosis
From a Kohler service manual covering: 4CFKM, 4CKM, 5CKM, 5CKM/SCKMR, ACKM/4CKMR. Check it applies to your exact model before use.
Applies to: Kohler 4CFKM, Kohler 4CKM, Kohler 5CKM, Kohler M18 engine, Kohler M20 engine
Before you start
- Hazardous voltage.
Procedure
- Disconnect all stator leads.
- Set ohmmeter on R x 1 scale and zero it.
- Check continuity between leads 1 and 2, and 3 and 4.
- Check continuity between leads 33 and 44, and 33 and 55.
- Check continuity between leads B1 and B2.
- Check no continuity between lead 1 and leads 3, 4, 33, 44, 55.
- Check no continuity between any stator lead and ground.
- Repair or replace stator if it fails any checks.
Tools required
- Ohmmeter Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Take readings at room temperature or about 70°F (21°C)
Full service-parts list: Kohler 4CFKM →, Kohler 4CKM →, Kohler 5CKM →
Source: Kohler service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.