Kohler CH5 / CH6 — Spark Plug Service
Maintenance
For the Kohler CH5 / CH6, from the Kohler service manual.
Applies to: Kohler CH6
Before you start
- Do not clean spark plug in machine using abrasive grit.
Procedure
- Clean area around base of spark plug.
- Remove plug and check condition. Replace if worn or reuse questionable.
- Check gap with wire feeler gauge. Adjust gap to 1.02 mm (0.040 in.) by bending ground electrode.
- Reinstall spark plug. Torque to 24.4—29.8 Nm (18—22 ft. lb.).
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Spark plug type: Champion RC12YC Amazon eBay $12.90 NAPA $11.52 FridayParts $19.99 or equivalent
- Gap: 1.02 mm (0.040 in.)
- Torque: 24.4—29.8 Nm (18—22 ft. lb.)
Full service-parts list: Kohler CH6 →
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.