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Home » Public Forums » GMCnet » [GMCnet] Running the Onan now, and then isn't as good as you might think
[GMCnet] Running the Onan now, and then isn't as good as you might think [message #317729] Thu, 18 May 2017 08:42 Go to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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Senior Member
I've heard of owners starting the Onan every two weeks, or once a month. And thinking that the practice is good for the unit. Think of it this way. Every time you start it. You fill the carb with gas. Then you shut it off with a carb filled with gas. Then the lights evaporate out of the carb. Leaving the heavier material to build up in the carb as deposits in the carb. I only run my Onan when I need to use it. If your GMC sits for a very long time. Drain your tanks. Put in fresh gas. Disconnect the gas line to the carb of the generator. Turn the electric fuel pump on with your prime button. Or a jumper switch to get fresh gas from the tank to the carb. Reconnect the gas line to the carb. And start. This is the same situation for your engine in the GMC. Bob Dunahugh Member GMCMI
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