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318 is hard restarting after running 20 minutes or more.

1705 Views 5 Replies 5 Participants Last post by  D-Dogg
My well cared for 318 is hard restarting after running 20 minutes or more. Fresh gas with sea foam and clean gas filter.
Prior to the last oil change, I added the proper amount of sea foam to the oil and then drained it.
Should I pull the plugs a give them an eyeball or just change them?
Onan P218
556 hours
1 - 1 of 6 Posts
My neighbor had that problem begin two years ago, and after plugs, wires, coil, voltage regulator, fuel pump, new fuel lines and filter, it wound up being item # 16 below, the ignition control HE166-0785.

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