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Kennyg's avatar
Kennyg
Explorer
May 14, 2021

Help! Onan 4K generator refuses to start and stay on

Here I go again. Am at home now and I tried the generator again. It started, but only for about 15 seconds and then shut down. During this short time it ran rough and the exhaust blew constant blue sm...
Class C
WinMinnie02's avatar
WinMinnie02
Explorer
Jul 09, 2021
I had the same issue, not starting easily. I changed the spark plug, changed the air filter, and changed the oil. Then run it monthly for 30 minutes with a load. Treat the generator nicely and it will treat you well. I always use 87 octane over the last 20 years.

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