Kohler 14RES / 20RES — Spark Plug Service
Maintenance · Spark Plugs
For the Kohler 14RES / 20RES, from the Kohler operator's manual.
Applies to: Kohler 14RES, Kohler 20RES, Kohler CH 740 engine, Kohler CH1000 engine
Before you start
- Clean area around spark plug to prevent unfiltered air entry
Procedure
- Clean area around base of spark plug to keep dirt and debris out.
- Remove spark plug and check condition.
- Replace spark plug if worn or reuse is questionable.
- Check spark plug gap using wire feeler gauge.
- Adjust gap if needed by carefully bending ground electrode.
- Reinstall spark plug into cylinder head.
- Torque spark plug 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 gap: 0.76 mm (0.030 in.) for 14 and 20 kW models
- Torque: 24.4-29.8 Nm (18-22 Amazon eBay FridayParts $45.30 ft. lb.)
Full service-parts list: Kohler 14RES →, Kohler 20RES →
Source: Kohler operator's 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.