Kohler — Engine Start Test Procedure
Testing & diagnosis · Engine start contacts
From a Kohler service manual — check it applies to your exact model before use.
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Before you start
- Disconnect the battery cables before working on the generator set; remove the negative lead first.
Procedure
- Connect an ohmmeter or test lamp across the engine start contacts (pins 8 and 9 of connector J1).
- Disconnect Normal power and verify that the engine start contacts close.
- Reconnect Normal power and verify that the contacts open after applicable time delays.
- If contacts do not operate, replace the power board.
- Press the Test button to initiate a test and verify the contacts close.
- Press the End button and verify contacts open after the engine cooldown time delay.
- If contacts do not close during the test, replace the logic board.
Tools required
- Ohmmeter or test lamp Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Engine start contacts at pins 8 and 9 of connector J1
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.