Kohler — Electronic Ignition System Test
Testing & diagnosis · Electrical System / Ignition
From a Kohler service manual covering: 1P18 690 06, RH255, RH265. Check it applies to your exact model before use.
Applies to: Kohler RH255, Kohler RH265, Kohler RH265-0001 engine
Procedure
- Disconnect cap from spark plug and attach it to terminal end of spark tester. Attach tester spring clip to a good ground, not to spark plug. Turn ignition switch ON and crank engine while observing fi
- If tester doesn't fire, unplug switch wire from ignition module and retest. If no spark is present go to step 2.
- Set an ohmmeter to Rx1 scale and zero meter. Trace two black leads from on/off switch and separate them. Connect ohmmeter leads to switch leads and check continuity in both switch positions.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Ignition module air gap 0.254 mm (0.010 in.)
Full service-parts list: Kohler RH255 →, Kohler RH265 →
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.