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Farmall & IHC Tractors Discussion Forum
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M - Carb help

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DJL

05-13-2006 22:50:38




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Got the Farmall M running that hadn't been ran for about 14 years. Spent alot of time cleaning out the rust/crude in fuel tank. put on a new sediment bowel and screen. Took the bowl off of the carb and cleaned it and the in-line screen filter. The tractor starts great with a short tap on the starter but only runs with the choke about half way out. When you take the choke off, it will immediately die. Seems to be "popping" and backfiring a bit at times too, but then will straighten out and run good (again at half choke). I took the carb off, where do I start? What should I look for? The tractor seems to be getting a good, steady stream of gas from tank. I've never put in a carb kit, or rebuilt one before. Any advice is appreciated.
Thanks
DJL

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RustyFarmall

05-14-2006 06:29:25




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 Re: M - Carb help in reply to DJL, 05-13-2006 22:50:38  
Most likely the needle valve is sticking and not opening fully to allow a full flow of gas, might also be the float itself is hanging up or sticking and not allowing a full flow. A hanging float is a real problem on the M carbs because there just isn't a lot of space where the float lives. If the tractor sat for 14 years, there is most likely a bunch of goop down in the well where the main metering stem is attached, and the metering stem itself is probably at least partially plugged. A carburetor that is this dirty will probably require some cleaning other than what would be normal. Send an e-mail if you need more help.

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MAGMAN

05-14-2006 03:44:41




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 Re: M - Carb help in reply to DJL, 05-13-2006 22:50:38  
Leave a post here for RustyFarmall he is the best Carb man in the N,S,E,W, you get the picture. He will help you out. Knowledge, Parts, Carbs what ever. JON



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tn terry t

05-14-2006 03:22:17




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 Re: M - Carb help in reply to DJL, 05-13-2006 22:50:38  
the key word here is clean clean clean when you think its good and clean-clean it again and float setting good luck



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