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willysmjeeps.com :: View topic - Fuel Float
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Fuel Float

 
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usma41
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Joined: Oct 06, 2006
Posts: 194
Location: Zephyrhills, Florida

PostPosted: Sat Nov 11, 2006 1:04 pm    Post subject: Fuel Float Reply with quote

What are the settings for the fuel float?
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OKCM38CDN
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PostPosted: Sat Nov 11, 2006 7:07 pm    Post subject: Reply with quote

1/4"...

Best to use a 1/4" drill bit as a guage...
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wesk
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Joined: Apr 04, 2005
Posts: 16253
Location: Wisconsin

PostPosted: Sat Nov 11, 2006 9:43 pm    Post subject: Reply with quote

Frank,
The complete overhaul and specs data from the Carter Carbs Manual TM 9-1826A are right here on our downloads page:
http://www.willysmjeeps.com/downloads/YScarb.pdf
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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usma41
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Joined: Oct 06, 2006
Posts: 194
Location: Zephyrhills, Florida

PostPosted: Wed Nov 15, 2006 6:47 pm    Post subject: Reply with quote

O K I recived the new float valve and installed it. The 1/4 inch that your refering to, is that before or after depression of the valve and where do you adjust it , on the stem or on the tab between the pivot yoke. I still belive that it is not set correctly because I can not get it to idle down. By the way the float valve that I replaced was no where idendical to the one I recived. The one I recived is the correct one. The differance is that the one that I replaced has a hex on it to install and the one I recived is for screw driver instalation. Thanks Frank
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wesk
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Joined: Apr 04, 2005
Posts: 16253
Location: Wisconsin

PostPosted: Wed Nov 15, 2006 7:39 pm    Post subject: Reply with quote

Frank,
Just download the YS carb manual from our download page:

http://willysmjeeps.com/v2/modules.php?name=Downloads&d_op=getit&lid=71
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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usma41
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Joined: Oct 06, 2006
Posts: 194
Location: Zephyrhills, Florida

PostPosted: Fri Nov 17, 2006 6:33 am    Post subject: Reply with quote

Well I did everything I could with this carb, it's still giving trouble. All the previous problems are gone but now I can't get the RPM's down. It now pulsates up and down. (I wounder if it's a linkage thing) It is most noticeable at a stop and between gear shifting. I put in a new float vale and installed a new gasket. I also set the float 1/4 inch. I adjusted the fuel mixture. Still nothing.
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cinnabarsam
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Joined: Apr 16, 2005
Posts: 14

PostPosted: Sat Nov 18, 2006 11:01 am    Post subject: Reply with quote

Hi Wes, a question on float level adjustment. Sometimes I see it listed
as 1/4 inch and sometimes 9/64 inch. That's quite a difference. Do you
know which is correct and why the change? Thanks, Sam
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wesk
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Joined: Apr 04, 2005
Posts: 16253
Location: Wisconsin

PostPosted: Sat Nov 18, 2006 7:12 pm    Post subject: Reply with quote

the 1/4" setting is for the M38's YS637S and the 9/64" setting is for the M38A1's YS950S.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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cinnabarsam
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PostPosted: Sat Nov 18, 2006 10:12 pm    Post subject: Reply with quote

Thanks Wes, I appreciate the information. Sam
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wesk
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PostPosted: Sat Nov 18, 2006 11:27 pm    Post subject: Reply with quote

Sorry I missed your second question.

The F134 gets it extra 12 HP from it's ability to breath better and move more fuel thru the induction system so it's carb the YS950S needs to maintain a higher fuel level in the bowl.
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Wes K
45 MB, 51 M38, 54 M37, 66 M101A1, 60 CJ5, 76 DJ5D, 47Bantam T3-C & 5? M100

Mjeeps photo album: http://www.willysmjeeps.com/v2/modules.php?set_albumName=Wes-Knettle&op=modload&name=gallery&file=index&include=view_album.php
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cinnabarsam
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Joined: Apr 16, 2005
Posts: 14

PostPosted: Sun Nov 19, 2006 11:34 am    Post subject: Reply with quote

After you stated the correct measurements the light bulb in my hard
head turned on I realized the reasoning. Of course the MC is adjusted
to 9/64 and the MD is 1/4 so that will give me something to do in the
shop on this windy chilly day. Smile Sam
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OKCM38CDN
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PostPosted: Sun Nov 19, 2006 6:11 pm    Post subject: Reply with quote

You have it backwards MC is 1/4" and MD is 9/64"... Smile
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