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140 sometimes runs rough
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- 10+ Years
- Posts: 2
- Joined: Mon May 31, 2010 1:17 pm
- Zip Code: 02081
140 sometimes runs rough
Does anybody have a suggestion on what might be causing my 1967 IH 140 12 volt positive ground tractor to run great sometimes and then all of a sudden run lousy with no power and an occasional backfire. I just tuned it up , new cap, rotor ,and wires and rebuilt the carb. I also converted the ignition to an electronic ignition, but the problem still occurs.
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- Cub Pro
- Posts: 10290
- Joined: Mon Oct 24, 2005 8:35 pm
- Zip Code: 23962
- eBay ID: dmb2613
- Circle of Safety: Y
- Location: VA. Randolph
Re: 140 sometimes runs rough
It should be 12 volt neg. ground. Most likely an issue with trash in the carb. Is the tank clean ? and does it have a good fuel flow?
IN GOD WE TRUST
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
All others pay cash
Boss Hog
Power corrupts; absolute power corrupts absolutely byJohn Emerich Edward Dalberg
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- 10+ Years
- Posts: 2
- Joined: Mon May 31, 2010 1:17 pm
- Zip Code: 02081
Re: 140 sometimes runs rough
Thanks boss hog, Your right it is a negative ground, and I'll check the strainer on the tank and post the results.
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- 10+ Years
- Posts: 3736
- Joined: Sun Jul 13, 2008 10:05 pm
- Zip Code: 45067
- Tractors Owned: 1951 Cub, 2-1955 Loboy w FH, a few plows, discs, mowers, blades, carrier & such
Several '61 CC Originals, Cub Cadet 100, several 102's & 122's, 124, various CC options & implements, #1Trailer, 1963 Springfield, JD 770, Ford 8N - Circle of Safety: Y
- Location: OH, Trenton
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