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Michael V (NM) 
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Joined: 12 Sep 2009
Location: NM
Points: 2524
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 Topic: O-C carburetor woes
Posted: 18 Dec 2025 at 10:23pm |
Workin on a M/S TXS #67(IIRC) on a Moline U, I put in a new needle and seat,, set the float at 1/4" like the structions say,,well,, floods really bad..runs, but lotsa black smoke,gas running out of the ai cleaner inlet.. Well, change back to the 'old' needle an seat,it runs really good,no 'flood' kind of exhaust smoke, it even sounds better,, no gas running out,, but hafta run about 1/2 choke to run at hi idle....☹️  tell me not gettin enough fuel..I do have good flow with the bowl plug removed.  Jus venting mostly,, I'll figure it out...😡 The one on the rear of the trailer is the culprit.. 
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SteveM C/IL
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Joined: 12 Sep 2009
Location: Shelbyville IL
Points: 8739
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Posted: 18 Dec 2025 at 10:30pm |
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Let us know what you come up with.
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Michael V (NM)
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Joined: 12 Sep 2009
Location: NM
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Posted: 19 Dec 2025 at 10:54am |
yea,, I was venting,,, but ,, well,,,suggestions be welcome... 
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steve(ill)
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Joined: 11 Sep 2009
Location: illinois
Points: 89216
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Posted: 19 Dec 2025 at 12:49pm |
if your running with the choke 1/2 on, then the main jet is plugged... need to pull out the jets, rod out the holes, blow out with air, etc..
this assumes the intake manifold gasket is not cracked and your sucking in excess air..
Edited by steve(ill) - 19 Dec 2025 at 12:50pm
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Like them all, but love the "B"s.
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Michael V (NM)
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Joined: 12 Sep 2009
Location: NM
Points: 2524
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Posted: 4 hours 57 minutes ago at 11:45am |
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Well, Steve,, ya nailed it,, I didn't get the main jet fuel delivery holes cleaned good enough, after jacking with 2-3 different needle and seats,, I finally changed the float, I think it was hanging either fully closed, or fully open, well, the U runs sweet as can be now, I even used the plugs that were in it,, well, cept 1,, somebody broke it...even jus scraped the white crud off the points and used them,
It's all good,, now to get some water leaks fixed, maybe see about taking off some the iron on the rear wheels....
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Tim NH
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Joined: 16 Oct 2012
Location: Lancaster NH
Points: 1142
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Posted: 1 hour 36 minutes ago at 3:06pm |
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i did notice all those rear weights Michael. Those old girls were pulling big stuff.
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1950 WD 1959 D14 1955 WD45 1976 7000 B 207
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Michael V (NM)
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Joined: 12 Sep 2009
Location: NM
Points: 2524
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Posted: 21 minutes ago at 4:21pm |
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Yea, Tim, these are 3" thick,, I'm guessing 125-140# each,, and there's 3 outside, and 3 inside so, 12 of em on it,, BION,, there's no liquid in the tires....
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