[AT] Easier to Start?

[Darrell Ratliff]

It sounds like maybe the gas is draining out of the carb when it sets and 
you are having to re-fill the carb bowl before gas can be drawn into the 
combustion chamber.  The fact that it only runs well on half choke also 
indicates a fuel supply or air infiltration issue.  If you can get your 
hands on a vacuum gauge you might check for air infiltration as well.


From: Ben Wagner
Sent: Sunday, July 15, 2012 9:03 PM
To: Antique tractor email discussion group ; Farmall/IHC mailing list
Subject: [AT] Easier to Start?

Good Evening,

It's been awhile since I have had to bring you an issue on my Farmall
Super A.  It has always been hard to start, taking a long time of
cranking (normally two periods of three seconds each) before it will
begin to fire.  Lately, the electrical system has acted up, and I am
trying to start it with a hand crank.  It's great exercise, but not the
greatest use of my time.  It took a good 20 some turns with the hand
crank to get it to start firing tonight.  I'm surprised my arm can still
type!

Is there any sort of "trick" some of you know of to convince a tractor
to start easier with a hand crank?

In case it is important, the Super A has a good magneto, D21 spark
plugs, and a Zenith carb.  It also only runs well on half choke, and
there are no adjustments on the Zenith beyond the idle mixture.  I know
the impulse coupling works, unless I am mistaken.

Thanks for your help.  I'm sure all of you have had the tractor that
won't start well with a hand crank!

Ben Wagner
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