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Author Topic: Onan motor won't start on Champion 16 welder  (Read 245 times)

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Offline Sedgehammer

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Onan motor won't start on Champion 16 welder
« on: September 13, 2021, 02:20:22 PM »
Bought this unit last early spring

Onan model #1216G-1/11199E

Had some issues, put a new coil on it. Ran fine till about 3 weeks ago. Would start, run a few minutes then quit. Sometimes would start back up and would run fine. Sometimes would have to wait 15-20 minutes and it would start up and run fine

Now it won't start. We replaced the fuel pump with an electric one. The vacuum style wouldn't keep the bowl full. Now we have enough fuel. Did run for 30 seconds earlier today, now nothing again

Thinking the mag is not producing enough power consistently, but not sure

Any idea's out there

Offline sawguy21

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Re: Onan motor won't start on Champion 16 welder
« Reply #1 on: September 13, 2021, 03:04:54 PM »
Install a couple of inline spark testers which are cheap at auto parts store and watch the spark when it dies. If it turns yellow or quits you have narrowed down the problem. Was the coil OEM or an Amazon special? How many hours on the machine?
old age and treachery will always overcome youth and enthusiasm

Online mike_belben

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Re: Onan motor won't start on Champion 16 welder
« Reply #2 on: September 14, 2021, 09:46:06 AM »
Is this a breaker point or flywheel magnetic pickup ignition? 


I have a 2 cyl onan in an old case tractor that just wont keep spark no matter how much breaker parts you throw at it.  Even name brand ignition stuff is offshored and unreliable now. Lucas, bosch.  Sad. 
Isaiah 63:10

Offline Sedgehammer

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Re: Onan motor won't start on Champion 16 welder
« Reply #3 on: September 14, 2021, 11:07:00 AM »
Flywheel 

I think we've got it narrowed down to the ignition control and exciter ring


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