Hello everyone, as a 1st Responder in the medical field, I am planning for the worst....having to quarantine in my class B Xplorer. if the time comes. I went ahead yesterday and started my Onan Genny 4000, but ran it out of fuel. Put in half a tank of gas in the RV and tried to start the genny again. No luck. All she does is turn, even after priming. is there another way of priming the genny after it runs out of fuel? I want to have it ready if the day comes that I need to use it as a home for a couple of weeks.Thanks Stay Home and Stay Safe.

Crank it until it starts or spray a little starting fluid (ether) in air cleaner. It should not need to be primed. Preferred method is crank it over until it starts.

When was the fuel filter last changed?Try some starter fluid spray and see if it fires up.

Fuel, Spark, Compression and it will start. If one of those is missing it won't start. Check those three things before you use starting fluid.

Thanks for the suggestion, I've tried cranking it for about a minute, can I crankfor a longer period of time? not sure if that can overheat the starter.

I would not crank it for a full minute. That may eventually lead to starter failure. Most gens say to crank for 10-15 seconds at a time with a minute or so in between. Check for spark and then use starting fluid to get it going. If it starts then stops, then you have a fuel delivery problem.

Quarantine in RV? | Good Sam Community

enblethen
Nomad
Apr 06, 2020
Crank it until it starts or spray a little starting fluid (ether) in air cleaner. It should not need to be primed. Preferred method is crank it over until it starts.
gbopp
Explorer
Apr 06, 2020
When was the fuel filter last changed?
Try some starter fluid spray and see if it fires up.
Tyler0215
Explorer
Apr 06, 2020
Fuel, Spark, Compression and it will start. If one of those is missing it won't start. Check those three things before you use starting fluid.
HighwayPilot
Explorer
Apr 06, 2020
Thanks for the suggestion, I've tried cranking it for about a minute, can I crankfor a longer period of time? not sure if that can overheat the starter.
zigzagrv
Explorer
Apr 06, 2020
I would not crank it for a full minute. That may eventually lead to starter failure. Most gens say to crank for 10-15 seconds at a time with a minute or so in between. Check for spark and then use starting fluid to get it going. If it starts then stops, then you have a fuel delivery problem.
DancinCampers
Explorer II
Apr 06, 2020
I know that on my previous Onan 5500 and on my current Onan 8kw Quiet Diesel, holding down the Stop button will prime the system.
enblethen
Nomad
Apr 06, 2020
Minute steady is too long! Maybe fifteen seconds, then let off for 20-30 seconds and crank again.
fj12ryder
Explorer III
Apr 06, 2020
Have you physically checked the carb to see if you have fuel in it? If it doesn't start, I wouldn't keep trying, all you'll do is overstress things. Check the easy stuff first: fuel in the carb, spark at the plug.
bpadamson
Explorer
Apr 07, 2020
Our onan has a primer, it will flood the carburetor if we hold it too long.
OkieGene
Explorer
Apr 07, 2020
check the oil level

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