Kohler — Check, Adjust and Replace the Spark Plugs
Maintenance · Ignition System
From a Kohler operator's manual covering: KG6208, KG6208TAHD, KG6208TASD. Check it applies to your exact model before use.
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Procedure
- Stop the engine and allow it to cool
- Label the spark plug wires, then wipe dirt and oil from around each of the four wires
- Disconnect the spark plug wires
- Remove the spark plugs with a spark plug wrench
- Inspect each spark plug body for cracks, damage, or discoloration and check the washer
- Inspect the electrodes; replace the plug if burned, sooted, or fouled with oil
- Measure and adjust the gap to specification with a gap tool
- Thread the spark plugs into the cylinder head
- Tighten the spark plugs to 27 Nm (20 ft. lb.)
- Reconnect the spark plug wires in the same order as removed
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Gap 0.76 mm (0.03 in.) KG6208 Amazon eBay $999.99 / 0.4 mm (0.016 in.) KG6208TA
- Torque 27 Nm (20 ft. lb.)
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.