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What carburetor do I even have?

J

JohnV2000

Member
Heading peoples advice, I have been trying to google as much as I can to avoid asking too many questions here.

I apologize in advance for asking yet another question, but I am beyond confused.

My tractor, a Super C, C123 engine, with a Zenith carburetor, should have a Zenith 67x7 11115 carburetor. This is confirmed by my google research as well as the insight of a forum member.

However, after I took off my carb, I looked at the brass number plate, and it says 52499 9752 DB. From googling, I think this means I have a Zenith 9752 carb, which is not the standard carb on a Super C. Does this mean someone replaced it?

Also, when I trying to find parts for the Zenith 9752, one website says the service number for the Zenith 9752 is 12522. The problem is, a service manual I found for Zenith carbs lists the 9752 and 12522 carbs as having different specifications. I am just so frustrated and confused.

I am not sure if I should be buying parts for the Zenith 9752 carb (the number stamped on my carb) or the 12522 carb (the number that a website says is the service number for the 9752 carb).


Thank you for being patient with me,

John
 

If your carburetor is basically in good shape, just needs a freshening up, get a new needle and seat and a gasket kit. Those parts are pretty much universal between all of the Zenith carburetors.
 
Order by the number stamped on the carb. Use the specs for the number on the carb.

The carb may have been changed, but it will be close enough to work. There are many different numbers assigned to basically the same carb. Could be some minuscule difference that makes no difference in the performance. As long as it fits, the governor linkage fits and operates the throttle as it should, it will work.

Don't over think this. Just do what needs to be done, keep it simple, don't loose or break anything, you'll be fine.
 
John, be careful of a lot of the
aftermarket carburetor kits, which I guess
would be all of them these days, are junk
or improper. My advice would be to inspect
the carburetor very well looking for
damaged or coroded parts. Replace only what
is necessary. You can make your own gaskets
with gasket material from the auto parts
store.

Get some Yamaha carburetor cleaner. I think
it is the best. Do not take anything apart
if you can help it. Brass jets are soft and
easily damaged. Do not use steel wire to
clean ports. Strip some copper electrical
wire and use one of the strands.

Nearly identical carburetors were used on
lots of different brand engines. You will
be surprised to learn what all different
engines your carburetor came on. Yes, it
is very possible your tractor has the wrong
carburetor, but it may work just fine.
Search for all of the information you can
on the internet. This is one of the things
I enjoy about fixing old engines. It is
like a scavenger hunt.

Lastly, don't do anything to the carburetor
that you are uncertain about. Ask for more
help.
 

Thank you Steve and Rustyfarmall.

I will order based on the number stamped on my carb.

Thank you again for your help and your kindness.

John
 
(quoted from post at 05:26:49 06/13/19)
Thank you Steve and Rustyfarmall.

I will order based on the number stamped on my carb.

Thank you again for your help and your kindness.

John
Click to expand...

I have rebuilt a few of those Zeniths. I used aftermarket kits. Nearly all of them required some amount of modification to the main gasket. I learned to not throw away any of the old parts before comparing to the new parts to be sure they are the same. Sometimes the old parts that came out of the carburetor are better than the new parts included in the kits.
 
Hi, I have replaced carbs with another quite different
and doesn't seem to hurt the engine performance. Ed Will
 
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