4000 Onan running rich

Bob Bender · 08-26-2016, 08:56 PM

Onan gen putting out a lot of soot on exhust. 4000.

Jim Wahl · 08-27-2016, 12:51 AM

There is an adjustment screw on the carb for altitude changes. Make sure that is set correctly. Had a problem with mine a while back. Jim

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08-26-2016, 08:56 PM	#1
Bob Bender VIP Member Join Date: Jan 2009 Location: Maryland Posts: 1,712 Likes: 1,403 Liked 372 Times in 80 Posts	4000 Onan running rich Onan gen putting out a lot of soot on exhust. 4000. __________________ Bob Bender 144 O/SA 2010-2012 National Record Holder

08-27-2016, 12:51 AM	#2
Jim Wahl Veteran Member Join Date: Jan 2002 Location: Central Florida Posts: 5,841 Likes: 626 Liked 672 Times in 121 Posts	Re: 4000 Onan running rich There is an adjustment screw on the carb for altitude changes. Make sure that is set correctly. Had a problem with mine a while back. Jim . __________________ Jim Wahl....NHRA #2239 S/SS - IHRA # 8 Stock, D2 Stock Champion (forever I guess) 2019 Baby Gators Stock Champion 2009 D2 National Open Stock Champion 1981 D2 West Palm Beach LDRS SS Runner Up Past President, Southern Stock / Super Stock Association. SSSSA Forum Moderator