Onan running rough

[ron preston]

Speaking of onans, I pulled my 6k power drawer out to look at the
Connection in the back since the remote start will no longer fire it up.
Now I fired it up on the unit and it runs ok then intermittently rough
missing a lot and stack firing but not constantly don't think it's fuel
when I squirt a little bit of starter fluid in it doesn't seem to make much
difference any suggestions? Ran fine when I turned it off . pulled the
plugs one's pretty black other looks pretty good going for new ones in the
morning.
Also I want to replace the fuel line from the pump to the carb. Jim K?
Thanks,
Ron Preston
75 Glenbrook Headers Alcoas , more stuff from Jim K all the time

 

[jim kanomata1]

> Speaking of onans, I pulled my 6k power drawer out to look at the
> Connection in the back since the remote start will no longer fire it up.
> Now I fired it up on the unit and it runs ok then intermittently rough
> missing a lot and stack firing but not constantly don't think it's fuel
> when I squirt a little bit of starter fluid in it doesn't seem to make much
> difference any suggestions? Ran fine when I turned it off . pulled the
> plugs one's pretty black other looks pretty good going for new ones in the
> morning.
> Also I want to replace the fuel line from the pump to the carb. Jim K?
> Thanks,
> Ron Preston
> 75 Glenbrook Headers

Ron,
You might want to check the ignition wires
Both plugs should read the same

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Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.appliedgmc.com
1-800-752-7502

 

[ron preston]

Thanks a lot Jim, condenser was next on my list but I will go through your
list first.
Ron preston

 

[ron preston]

Thanks John,
I meant the connections in the coil were pretty bad so I trimmed about
3/16" off the insulation and folded the wire around the insulation to get a
better contact.
BTW I got the proper resistance between the power connections to the coil
but couldn't seem to get anything where the plug wires connect, I
wasn't sure if I may not be testing correctly.
Ron Preston

 

[ron preston]

My thanks to Jim Miller, my Onan was running rough etc. I followed your
advice and it turned out to be the points, I Burnished them and now it
runs fine EXCEPT it will sputter and die when I run both AC units. I
ran the unit for an hour and one AC for at least 20 minutes no problem,
but when the compressor for the other starts, the onan sputters and
starts to die, spraying start fluid in makes it worse and taking the air
cleaner loose makes it better. Also seems to run best with power needle
all the way in. It doesn't seem to be starving for fuel, actually the
opposite ? I rebuilt the carb (mistake) and probably messed something
up. Taking the carb apart again, what should I look for?
Thanks for any advice,
Ron Preston,
75 Glenbrook,
San Jose

 

[emerystora]

Take out the needle from the float bowl and check the o ring. If it bad and leaking replace it with an 1/4" od, 1/8" id.

When you said it runs best with the needle all the way in it's a clue that it's leaking.

Emery Stora
77 Kingsley
Frederick, CO

>
> My thanks to Jim Miller, my Onan was running rough etc. I followed your
> advice and it turned out to be the points, I Burnished them and now it
> runs fine EXCEPT it will sputter and die when I run both AC units. I
> ran the unit for an hour and one AC for at least 20 minutes no problem,
> but when the compressor for the other starts, the onan sputters and
> starts to die, spraying start fluid in makes it worse and taking the air
> cleaner loose makes it better. Also seems to run best with power needle
> all the way in. It doesn't seem to be starving for fuel, actually the
> opposite ? I rebuilt the carb (mistake) and probably messed something
> up. Taking the carb apart again, what should I look for?
> Thanks for any advice,
> Ron Preston,
> 75 Glenbrook,
> San Jose
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