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Onan issue [message #366486]

Sun, 05 September 2021 16:45

lqqkatjon

Messages: 2324
Registered: October 2010
Location: St. Cloud, MN

Karma:

Senior Member

Generators and I do not get along.

Trying to help my friend ed with his onan. This thing has been kicking our butts for a couple seasons as well as a couple others who have tried helping.

Starts. Runs for a while. 5 min? Peters out. Will start and repeat when it cools.

Has newer(last couple years we have been tossing parts at it).

Fuel pump(oem airtex style).
Fuel hose
Fuel shut off.

Have rebuilt multiple carbs. This last carb came from jeff sirum- rebuilt.

Harley coil.

We just put in bovee ignition.

Oil level full. Lots of gas.

I am thinking we have a bad coil. Spark seems maybe weak when it shuts down and kinda erratic. Trying to watch it with a timing light. Spark never disappears but when it quits it will drop
To like 600 rpm for 20 seconds?? It indicates spark, but I think it should flash more.

Shooting starting fluid in to restart it does not seem to work. And plugs are not really wet.

Short of dumping the carb bowl. I am thinking it has gas. Take hose off and there is gas to the carb. Not vapor locked. (Was thinking it was a fuel issue, but replaced all that!).

I am wondering what powers the coil??? I am thinking that maybe I need to get a different power source to it(hotwire).

Man it now runs nice when it runs!

Jon Roche 75 palm beach EBL EFI, manny headers, Micro Level, rebuilt most of coach now. St. Cloud, MN http://lqqkatjon.blogspot.com/

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[Message index]

		Onan issue By: lqqkatjon on Sun, 05 September 2021 16:45
		[GMCnet] Re: Onan issue By: James Hupy on Sun, 05 September 2021 16:59
		Re: Onan issue By: JohnL455 on Sun, 05 September 2021 17:37
		Re: Onan issue By: Matt Colie on Sun, 05 September 2021 18:56
		[GMCnet] Re: Onan issue By: bdub on Sun, 05 September 2021 19:48
		Re: Onan issue By: Larry on Sun, 05 September 2021 20:46
		Re: Onan issue By: lqqkatjon on Sun, 05 September 2021 20:52
		Re: Onan issue By: Carl S. on Sun, 05 September 2021 21:36
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 12:19
		[GMCnet] Re: Onan issue By: sgltrac on Tue, 14 September 2021 12:35
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 14:13
		Re: Onan issue By: JohnL455 on Tue, 14 September 2021 14:54
		Re: Onan issue By: lqqkatjon on Tue, 14 September 2021 17:59
		Re: Onan issue By: Larry on Tue, 14 September 2021 19:43
		Re: Onan issue By: Larry on Tue, 14 September 2021 19:45
		Re: Onan issue By: Carl S. on Wed, 15 September 2021 10:57
		[GMCnet] Re: Onan issue By: Billy Massey on Wed, 15 September 2021 11:04
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 11:31
		Re: [GMCnet] Re: Onan issue By: Carl S. on Wed, 15 September 2021 16:23
		[GMCnet] Re: Onan issue By: James Hupy on Wed, 15 September 2021 16:55
		[GMCnet] Re: Onan issue By: jimk on Wed, 15 September 2021 18:58
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 19:34
		[GMCnet] Re: Onan issue By: jimk on Wed, 15 September 2021 22:55
		[GMCnet] Re: Onan issue By: sgltrac on Wed, 15 September 2021 23:13
		Re: Onan issue By: lqqkatjon on Thu, 16 September 2021 08:28
		[GMCnet] Re: Onan issue By: jimk on Thu, 16 September 2021 10:17
		[GMCnet] Re: Onan issue By: sgltrac on Thu, 16 September 2021 10:52
		Re: [GMCnet] Re: Onan issue By: Ken Burton on Sun, 19 September 2021 02:28
		Re: [GMCnet] Re: Onan issue By: seeburg220 on Sat, 24 June 2023 14:43
		Re: Onan issue By: dmumert on Thu, 16 September 2021 10:28

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