Originally Posted by VC63
I am a loss as what to do next. I really donít want to take it to Cummins/Onan but I am out of ideas. ....
Buy a portable generator. I have two.
When I bought my first MH, the gas Onan would start but not run under load. Bought a 800 watt Harbor Freight generator to charge batteries.
I eventually got it running with a rigged fuel tank and a lot of seafoam.
Gummed up carb and fuel line.
When my current MH was new to me, the LP Onan would run under load for about 20 minutes then stop producing voltage.
Replaced the voltage regulator. If it not one thing it is another.
Last year bought a Powerhouse inverter/generator large enough to power one A/C. A lot cheaper than Onan parts or going the dealer.
I boondock a lot and propane can be a limiting factor of how long I stay in the woods. The LP Onan is temperamental. It runs best when it is hot and likes an A/C or two. However, I have fixed about everything that is accessible.
Run both portable gas generators periodically. I wag my finger at them and say 'you are cheap and will throw you away if you give me trouble'.
I would also replace the spark plug wires. I use a lot of starting fuel on my LP Onan when it is cold. Try spaying starting fuel when your gasoline engine is running. If it runs better that could mean your carburetor is bad.