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Old 01-24-2018, 02:52 AM   #11
Tinner12002
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Originally Posted by twvette View Post
Might be bad fuel pump as sounds very similar to what my old Weekend Warrior did before replacing it. It was a bit intermitted also in that on occasion it would run a while and then randomly turn off again. There are better pumps out there to replace the oem one. Not a big job but still a pain.

I think when my new one starts to hiccup down the road I will switch over to the fuel injected version as besides a high pressure fuel pump it is essentially plug and play. Baffles me nobody has switched to this model and its not the cost either.

I've also wondered the same thing, and as you said there is only a couple dollars difference in price. If replacing and existing carbed model you do have to get the high pres fuel pump package also.
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Old 01-24-2018, 02:56 AM   #12
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Originally Posted by dcg9381 View Post
Seafoam isn't going to clear a plugged carb, if that's the issue. As the OP runs it for a while once every 30-45 days, I doubt that's the problem (unless he's sitting on a tank of really old gas).

Like someone else suggested, pull the fuel line off the carb. Have someone inside the RV hit the prime button and see if you get fuel. If not, you know what the issue is.

At one time Amazon had the manufacturer branded fuel pump for some Onan generators at about 1/2 the price. Search by partner number on the pump.


I haven't seen the EFI generator that twvette talks about, but I like the idea...
Sorry you haven't had any luck with seafoam as it has always cleared one for me. It will clear varnish inside a carb that is clogging one due to using our ethanol flavored gas, dirt, not so much.
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Old 01-24-2018, 04:48 AM   #13
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The first three years I owned my raptor I had 4 fuel pumps go bad at a cost of $140 a pop. When I talked to the service dept. at cummins they guy told me that these pumps are known to fail. The last time the pump went out it was a Saturday night with no dealer in site. went to napa and bought a low pressure pump, in line filter and some misc. The bill was less than $50. That pump is still on there and I have had no problems since. I also only run non oxy fuel. For the little difference in price it is well worth it. I thick the biggest problem with the stock set up is the in filter. Seems to let a lot of crap by and plug up the pump.
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Old 01-25-2018, 11:25 AM   #14
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Sorry you haven't had any luck with seafoam as it has always cleared one for me. It will clear varnish inside a carb that is clogging one due to using our ethanol flavored gas, dirt, not so much.
It probably will clean varnish out of the bowl, but darn near nothing will clear a jet once it is clogged (I don't think that's what is going on in the OPs case). Darn jets, short of a chemical vat or actually pushing a wire through them, I've never found an in-the-can solution.
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