Run Onan generator without the 6 pin plug - Electrical Supplies

Spark Plug # RS17YX for Onan 167-0272 on RV Gensets ...

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Generator Parts Spark Plug # RS17YX for Onan 167-0272 on RV Gensets ... for this plug require the spark gap to be set at .025" (25 thousandths of an inch).

Onan Gen HGJAB What is the best spark plug and gap? - Heartland ...

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Jun 8, 2013 - 3 posts - ‎3 authors Also what is the the correct gap on the plugs? ... brands · Generators; Onan Gen HGJAB What is the best spark plug and gap? ... Gap: 0.025

While you didn't indicate the btus of the HVAC I assume it worked before? What you are describing sounds like the engine isn't making horsepwer. A 2800 is a small unit that a HVAC and some lights is about all it can stand. The HVAC takes about 6 x current to start it, than it does to run it. If this inrush is high and the generator engine isn't producing full HP then it will shut off and die on under frequency. I would recommend having and engine leakdown test done (not a compression test, as that doesn't tell the whole story. This will ensure all valves and rings are mechanincally in good shape, then try a basix tune up, plugs filters etc.

Your air filter may be stuck with dirt or moist. Try to clean or change it.
In all cases the problem is in the air duct, if it runs well without air filter.

Hooked in to motorhome via automatic switchover, or does the power plug of motorhome have to be plugged in to receptacle at or near generator?

Hi,
This sounds like a problem with fuel settings or dirt in the jet.
If you can find the carb adjustment screws, with it runing on full choke - screw it in fully untill it stalls, then back out to original position, then restart.
Take off choke and adjust setting untill it runs well when warm with choke fully out.
You can then try and make it run leaner without stalling.

Mike, the red and white spade connectors coming out of the AVR attach to the brushes--anode/cathode... red+ left, white = right

That knob should be to bring pressure up and down with 0 being off or the lowest range of the regulator. This regulator is adjustable for different applications apparently.

solenoid? or relay? Good luck!!!

Standard 30W motor oil.

Hi, The 4000 rv unit unit is equipped with full diagnostics, and is indicated by the status light blinking. The blinking sequence, blinks a code as to the fault. If your unit runs and the status light is on without blinking, it is either the circuit breaker on the genset or in your distribution panel that needs to be reset. Good Luck, this should Fixya!