Generac PRIMEPACT 70 — Checking and Setting the Spark Plug Gap
Maintenance
For the Generac PRIMEPACT 70, from the Generac owner's manual.
Applies to: Generac PRIMEPACT 70, Generac GN-480 engine
Before you start
- Sparking can occur if the wire terminal does not fit firmly on the spark plug terminal end.
Parts for this job
- 072347 Spark plug eBay $1.99
Part numbers from the service-parts list for Generac PRIMEPACT 70. Verify against your serial number before ordering; some links are affiliate links.
Procedure
- Clean the area around the base of the spark plug.
- Remove the spark plug and check its condition.
- Replace the spark plug if worn or if reuse is questionable.
- Check the spark plug gap using a wire feeler gauge.
- Adjust the gap to 0.030 inch (0.76 mm) by bending the ground electrode.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Spark plug gap 0.030 inch (0.76 mm)
- Champion RC12YC Amazon eBay $12.90 NAPA $11.52 FridayParts $19.99 or Fram Autolite 65
- Every 100 hours of operation
Full service-parts list: Generac PRIMEPACT 70 →
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.