RV Generator REPAIR, START UP, & TESTING - Onan Marquis 5500 - RUNNING AGAIN after SITTING 17 months

In this video I work on my Onan Marquis 5500 RV Generator which has sat unused for 17 months since our last road trip. Will it start and run? Yes, but some TLC will be required first. I will give you some tips on how to maintain your generator and get it running again. Feel free to view the chapters which most interest you, as follows....
CHAPTERS:
0:00 Intro & Overview
3:32 Oil & Filter Change
9:08 Replace Exhaust Hanger Bracket
12:47 Remove Carburetor
23:28 Clean & Rebuild Carburetor
35:16 Reinstall Carburetor
40:15 Install Fuel Filter & Air Cleaner
43:00 Start-up
45:00 Output Voltage Test
45:53 Engine RPM Test
47:11 Closing Remarks
Here are some Quick Links to the parts and products I used (paid links):
Onan Oil Filter - amzn.to/3DMO9hG
Onan Exhaust Bracket - amzn.to/3EdgwXN
Replacement Carburetor - amzn.to/3zQGcHd
Onan Fuel Filter - amzn.to/3hoSLmt
Digital Tachometer - amzn.to/3Ujqtsa

[@healsinger]

I know you posted this a year ago but I had to comment based on my recent experience with an Onan Marquis 5000 Generator on my 1997 Fleetwood Bounder. I do not have your consummate experience with engine repair but I've have about 50 years as a DIYer. I spent several hours on the carburetor 2 days ago and yesterday spent a few more hours upside down getting the old fuel pump out and the new one in. The pump was very difficult to access on the rear underside.
I came across your video after I had finished the repair. I was surprised at how well you took on the challenge of getting the carburetor bolts off.
Unlike you...I was miserable and exhausted.
I surmise my generator sat unused for 26 years. It has 52 hours on the meter which means it was never even "broken in". There was no varnish in the bowl but the jets looked somewhat dirty. I changed the fuel lines, and hot wired the pump so i can prime before starting.
I haven't tested it yet... I had to walk away from the repair for a couple of days...I was exasperated at the amount of time I had to invest in what should have been a simple repair. Now i have to get the cover off to connect the linkage. That's another production.
I bow my head to a person like yourself that works on engines regularly. The work is truly an art form. Much respect. Thanks for listening! Rob

[@Buckwsr]

Thanks, Rob. You're right....Getting that carburetor off and on is the biggest challenge, especially if you've got fat fingers! Good luck.

[@philliphall5198]

We run these engines in frac vans and change oil every two weeks
They are very very good engine if service

[@brandon42054]

I have an exhaust leak at the manifold one of the bolts backed out I put a new bolt in and it’s still leaking I’m thinking the gasket is messed up Im waiting on Amazon to deliver today
I bought a whole new carb to put on mine but it has ran very good since I installed it

[@rohanboswell5408]

I haven't watched your video to the end ,I have the same generator, and I can't figure out how to remove the carb float bowl

[@abdulwakeel5598]

That black knob that's at the bottom you have to use a screw driver to pop it off then you'll see the half inch nut at the bottom

[@rohanboswell5408]

I have same gen 5500 it only runs when the switch is pressed ,trying to find the trouble shooting info