The best way to clean a RV generator engine (shows Onan in demo) 

We have used the ru-vid.comUgkxOTeIs0vv4_9B5hsmnLsk9r930uDQLu_Y for probably 30 hours with our camper and it’s been great! The noise level is really only noticeable when running the AC and other appliances like the microwave, hair dryer, or coffee pot. It’s not huge like other ones and it has wheels so even at 90lbs, I can move it!

Had this exact situation - Generator starts and runs fine but surges under load. Completed steps 1 & 2 in this video. Generator runs perfectly now under all circumstances. The generator is 19 years old. Thanks so much for posting this fantastic video. Try it folks... It works!!!

Great video. I’m a Sea FoAm Fan but never thought of using it on my Onan but mine will get this treatment very soon. Thank You

I use this method on my RV generator once a year and I will say it works great. These generators are designed to run and unfortunately many sit for long periods creating problems with the carburetors. This method is a great solution to keep things running well.

I followed this video to the letter, It solved all my issues with surging. I did install a new fuel filter before I started. Thank you for the help, saved me a lot! Will now do this every year.

Lifesaver for my RV generator!! So happy you made this video. I learned about Seafoam cleaner from another RU-vid RV'er. I was so frustrated by the RV repair ripoffs, and even the Cummins techs who tell you to replace the carburetor AND the fuel pump when there is nothing wrong with them! I am going to get some Seafoam cleaner on Amazon then run through your cleaning methods. Thanks for the great video!

Excellent info! Thank you.

It works! My generator stopped surging after this treatment.

Great video Brian, thanks for the info.

This worked amazing, thank you!

Simple, easy to understand instructions....I'm working on two ladies RV with the Onan 2300 and it has never been treated, not used for a good while, replaced fuel pump and filter, because no gas to carb... Gas now looks like dark tee, air filter near black, but worse, this thing has never even had the oil changed and over 500 hrs....Some people should not own RV's...Nice ladies, but common sense eludes them....Thanks for this video...I'll try the gas can trick...Smart idea.

Been doing this for a few years. I use ethanol FREE gasoline mixed with sea foam however, and might add to take a air hose and blow air back into the fuel tank to clear any clogged debris. And when putting the rig away for the year I fill it with gas and toss a can of sea foam into the tank to soak. Also used it to clean out the turbo intake on my sons TDI Jetta. With a 4 inch intake manifold it was sooted down to size of a pencil tip barley running.

Brian, I tried your recommendations. They worked great. I mixed the one part Seafoam to one part gas and it stopped the surging within one minute. I have a Nikki carb on an Onan Emerald One. I confirmed the factory settings! After going through your procedure, I reconnected the fuel line from the tank, started it up and within two minutes it started surging again. Hmmm. It is running a little bit better but still the surging. It has a new voltage regulator and control board and plugs. The Hertz are between 60.1 and 62. David 🚀

Ok will di great video

Wow very helpfull the best advice on utube ever bro ima subcribe to yo channel

Trying this now... It made mine backfire pretty bad when I was adjusting the altitude screw. I adjusted it back and am waiting for it to hot soak now. It was still surging, but I hope it will be good after the post hot soak run. Will report back.

awesome video as always. where do we buy the seafoam hoodies and shirts.

Silly question but trying to clarify: Do you need to disconnect the fuel line before the fuel pump leads up to the carb? Or will the engine create enough suction to draw up the hose?

I mixed 16oz to a gallon of gas didn't know i could go 2 to 1. I keep restarting generator a few minutes after it stalls. I'll run the whole mixture through it if no improvement I'll throw a new carb on it. Rv sat for over a year

I have a Onan 4000 and like many generators It runs off the fuel off the Motorhome,, My question is couldn't you just dump the Seafoam cleaner in with the fuel when filling up the Motorhome,,as the generator uses the same fuel from the same tank, just asking cause I don't know, thank you

If your generator still runs, you could let your motor homes fuel tank run very low, add as much product as you want and run the generator under load for as long as it takes. Then you can fill your fuel tank and still benefit from the product still in the tank.

Please help seafoam, i added seafoam into my welder generator yesturday, first i added it into my gas tank and let it run. I let it run for approx 5 minutes, i then called seafoam to ask Jim if i should now put seafoam into my crankcase, he said its fine, i added the seafoam to the crankcase and started up the generator, after 4 minutes it suddenly got weaker and died out. Im very concerned. I called back to ask whag i should do as Jim said to let it sit for a day and then try starting it. Today i plan on trying to start it, but if it doesnt start on the normal 1 - 2 attempts, what do you suggest i do? Can it be moisture build up in the bottom of the carb? Did the seafoam loosen gunk up and it clogged the carb jets? Ifbit doesnt start should i apply quick start or carb kleen first? I will start by removing the spark plugs to see if they are fine. I watched your videos preformed on cars, i had not seen this video prior, but the can states works on all engines. I followed directions and got help from jim any help is appreciated!

Can u explain how to drain a kohler rv generator bowel

I have add n Onan 4000, does not start. When you say crank the motor to draw the mixture into the cavity, how long does it take? I cranked it 3 separate times for about 1 minute or so until my generator stopped. I also heavily primed it. Is this enough?

what about adding seafoam directly to the onan engine oil?

Can a gummed up carburetor cause fuel to spill out from the carburetor? The generator starts but spits out fuel from the carburetor area. I think I will try what you suggested.

Just had an idea. My RV fridge doesn't work as well on propane as it does on AC. I have cleaned the orifice jet and burner assembly with acetone and alcohole and solvent with no improvement. I think I'll soak them with Seafoam for a few days in a black coffe cup in direct sunlight. Seafoam Official, any comments??

Why wouldn't you feed the Seafoam / Gas mixture directly into the hose at the carburetor?

I tried but this just wouldn't work for me. After much grief, a $50 aftermarket carb from Amazon did the job and only takes about 20 min to change. I should mention my genset was non-running without starter fluid so I was bad off to start.

So it's just adding it to the fuel tank not effective?

Hey I've got a champion generator and I have water in the oil now I have flushed it a bunch of times and still have water in the oil now what can I use to flush the oil Crank Case and completely remove the water and old oil

Onan 4000 generator is running High what could cause that problem

Since the generator uses gas from the coach, couldnt simply adding seafoam to the engine fuel do the same thing?

Can I just use a straight fuel hose without a pump?

when using seafoam on a gummed up carb, can you use just seafoam and no gas?

How can I remove the cover for a model HGJAB Cummins Onan RV QG 5500?

My generator wont start as the jets are completely closed with gum

Great video but I disagree with one part of this video , I would do everything you said except that instead of using regular gasoline with the heavy Seafoam mix I would use either non ethanol marine fuel or Trufuel with the heavy Seafoam mix you recommended,any remaining fuel in the system wont as likely gum the carb up . Ethanol based fuels suck and is bad for your carburetor. Trufuel is about as pure a fuel as you can get and that’s to only way I long term store any small engine.