Generac PRIMEPACT 66G / PRIMEPACT 66LP — Checking the Engine Spark Plug
Maintenance · Ignition
For the Generac PRIMEPACT 66G / PRIMEPACT 66LP, from the Generac owner's manual.
Applies to: Generac PRIMEPACT 66G, Generac PRIMEPACT 66LP, Generac GN-480 engine
Parts for this job
- 072347 Spark plug — Generac PRIMEPACT 66G eBay $1.99
- 072347 Spark plug — Generac PRIMEPACT 66LP eBay $1.99
Part numbers from the service-parts lists for Generac PRIMEPACT 66G, Generac PRIMEPACT 66LP. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Clean area around base of spark plug by scraping or washing with wire brush and commercial solvent
- Remove spark plug and check condition; replace if worn or questionable
- Check spark plug gap using wire feeler gauge; adjust gap to 0.030 inch (0.76 mm) by bending ground electrode
Tools required
- wire feeler gauge Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Gap 0.030 inch (0.76 mm)
Full service-parts list: Generac PRIMEPACT 66G →, Generac PRIMEPACT 66LP →
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.