[AT] Tractor Question - 420 JD

[charlie hill]

That's the right carb.
http://www.oldjdforyou.com/merchant2/merchant.mvc?Screen=CTGY&Store_Code=oldjd4u&Category_Code=72

I don't know a thing about JD tractors but I know a little bit about Marvel 
Schibler carbs.  There is most likely trash in that carb.  It doesn't have 
to be much.  You might never even see it but it's there.  I've had the same 
problem on a MS carb on an Allis.  Mechanic friend heard it run and told me 
it was trash.  I didn't believe him since I had cleaned it really carefully. 
I pulled the carb back down, flushed it out with carb cleaner and blew it 
out with air, put it back on and it ran fine.

Charlie
----- Original Message ----- 
From: "Paul Waugh" <pwaugh at embarqmail.com>
To: "Tractor" <at at lists.antique-tractor.com>
Sent: Thursday, August 07, 2008 7:24 PM
Subject: [AT] Tractor Question - 420 JD


> Hi All
>
> I have a 1956 'Green' JD 420.  I have always had to run the choke out 
> quite a ways. I have rebuilt it, had it rebuilt and still same thing. I 
> have it off right now from dirt while bush hogging tall grass, and I 
> wonder if it even has the correct carburetor on it.  The brass tag reads 
> TSX 641, second line 256.  If this tells any one or they can guide me to a 
> website.
>
> TX Paul in IN
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