Generac — Replacing Spark Plugs

Maintenance · Engine

From a Generac owner's manual — check it applies to your exact model before use.

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Procedure

1. Stop engine
2. Pull spark plug wires off plugs
3. Clean area around spark plugs
4. Remove spark plugs from cylinder heads
5. Set spark plug gaps to 0.76 mm (0.030 in.)
6. Install correctly gapped spark plugs
7. Push boots firmly onto spark plugs

Source: Generac owner'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.

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