350U running lean

Posted by Formerly PaMIke on March 09, 2010 at 17:37:07 from (24.152.202.123):

I have been posting on here about the tractor not running right and a lot of you have given me info. The tractor wouldnt run well after coming back from paint and having a 12 volt conversion. I found an intake manifold leak. Fixed that and it ran better. Found a bushing out in the governor. Fixed that and it ran even better. Still is fussy when you start it. Gotta mess with the choke in and out till there is some heat in the engine. Once there is heat in the engine it idles well and runs well but on sudden load it will sometimes stumble. I pulled out the needle on the main jet and sprayed carb cleaner back though. That seamed to help some. I set the needle back to 5 turns out. I pulled the idle needle. When running your finger down the taper of the needle I could feel a ridge where the angle changed. Is this correct? Pulled 2 spark plugs. Electrode is very light brown. I would say too lean. I would have thought if the carb needed rebuilt it would be running rich. Does a 12 volt conversion cause an engine to run lean since there is better spark for the combusion??

Replies:

• Re: 350U running lean El Toro 05:49:26 03/10/10 (2)
  • Re: 350U running lean FORMERLY PAMIKE 06:41:11 03/10/10 (1)
    • Re: 350U running lean CNKS 06:51:12 03/10/10 (0)
• Re: 350U running lean Dellbertt 04:10:39 03/10/10 (1)
  • Re: 350U running lean Formerly PaMike 06:42:21 03/10/10 (0)
• Re: 350U running lean CNKS 18:29:32 03/09/10 (2)
  • Re: 350U running lean Formerly PaMike 02:40:04 03/10/10 (1)
    • Re: 350U running lean CNKS 06:48:34 03/10/10 (0)
• Re: 350U running lean Janicholson 18:22:35 03/09/10 (0)
• Re: 350U running lean Cliff S 18:16:37 03/09/10 (1)
  • Re: 350U running lean mike paulson 17:58:18 03/10/10 (0)

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