Generac — Servicing the Spark Plug
Maintenance · ignition
From a Generac owner's manual — check it applies to your exact model before use.
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Procedure
- Stop engine, pull spark plug wire off
- Clean area around spark plug, remove it
- Set gap to 0.70-0.80 mm (0.028-0.031 in)
- Install correctly gapped spark plug
Specs & values
- Champion N9YC or equivalent
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.