Kohler — Test for Spark
Testing & diagnosis · Electrical system
From a Kohler service manual covering: EZT715, EZT715-EZT750, EZT725, EZT740, EZT750. Check it applies to your exact model before use.
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Before you start
- Do not crank engine or perform tests with 1 spark plug lead disconnected and not grounded.
Procedure
- With engine stopped, disconnect 1 spark plug lead.
- Connect spark plug lead to post terminal of spark tester and attach tester clip to a good engine ground.
- Crank engine over, establishing a minimum of 550-600 RPM, and observe tester for spark.
- Repeat spark test on opposite cylinder if cylinders are being tested individually.
Tools required
- spark tester Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Cranking speed minimum 550-600 RPM
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.