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Spark plug inspection

Posted: Fri Sep 10, 2021 11:44 am
by Mpphred
I purchased service agreement on a Generac standby on the house I bought. It includes services such as oil, change & filter, air filer, spark plug inspection, battery, etc. My question is how does one inspect the spark plug?

Re: Spark plug inspection

Posted: Wed Sep 15, 2021 8:19 am
by Chris
Normally I would think it just means to remove them and see if there is enough wear to justify replacement.