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Quick question. Backfiring
Posted: Wed Jun 12, 2024 7:22 pm
by propane1
Not my engine. So don’t know what has or has not been done. B48 Onan backfires through the carburetor when throttled up. Any ideas so I could maybe help the fella out. Thanks for any help.
Noel
Re: Quick question. Backfiring
Posted: Wed Jun 12, 2024 7:40 pm
by DavidBarkey
propane1 wrote: ↑Wed Jun 12, 2024 7:22 pm
Not my engine. So don’t know what has or has not been done. B48 Onan backfires through the carburetor when throttled up. Any ideas so I could maybe help the fella out. Thanks for any help.
Noel
Lean misfire . Check the intake seams, gaskets, and carb for worn throutle shaft play /air leak and or gunked up carb.
Re: Quick question. Backfiring
Posted: Wed Jun 12, 2024 8:31 pm
by propane1
Thanks Dave.
Noel
Re: Quick question. Backfiring
Posted: Wed Jun 12, 2024 10:17 pm
by myerslawnandgarden
propane1 wrote: ↑Wed Jun 12, 2024 7:22 pm
Not my engine. So don’t know what has or has not been done. B48 Onan backfires through the carburetor when throttled up. Any ideas so I could maybe help the fella out. Thanks for any help.
Noel
Start with the condenser, doesn't even have to be the correct one and fit in the breaker box. Just connect one to the neg coil terminal and mount it to a good ground.
Bob
Re: Quick question. Backfiring
Posted: Thu Jun 13, 2024 6:25 am
by propane1
Thanks Bob. Forgot about that.
Noel