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AC 720 Zenith Carb

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dertz19 View Drop Down
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Joined: 22 Sep 2009
Location: Minnesota
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dertz19 Quote  Post ReplyReply Direct Link To This Post Topic: AC 720 Zenith Carb
    Posted: 11 Jun 2019 at 10:30am
I need to rebuild or replace the carb- looks like the model # is 13262, is that correct? Any recommendations on source for the rebuild and gasket kits? What about if I decide to get a whole new carb- are they available?
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IBWD MIke View Drop Down
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Joined: 08 Apr 2012
Location: Newton Ia.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote IBWD MIke Quote  Post ReplyReply Direct Link To This Post Posted: 12 Jun 2019 at 8:51am
That's the model no. I have written down for mine. Need to do the same as you. There are kits available, none too cheap. Mcdonaldcarb.com has about the best deal I've found, not sure on the completeness of the kit.

Keep us updated on your progress.
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dertz19 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote dertz19 Quote  Post ReplyReply Direct Link To This Post Posted: 27 Jun 2019 at 10:27am
Update: I wound up getting the carb rebuild kit from Sandy Lake. It was probably more $ than what I may have been able to find elsewhere, but I wanted to make sure I had the right one. I also bought new points and condensor (got that on Amazon).  I took it all over to my local country mechanic, and it looks like the root of my problem (inconsisten performance and backfiring) is an electric fuel pump the previous owner installed (an Edelbrock) that is pumping way too much fuel into the carb. So right now I'm ordering a fuel pump rebuild kit from onanparts.com and going that route (about $100). My mechanic said that between the bad points, and the carb issue, he can't believe it was even running.
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tadams(OH) View Drop Down
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Joined: 17 Sep 2009
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Post Options Post Options   Thanks (0) Thanks(0)   Quote tadams(OH) Quote  Post ReplyReply Direct Link To This Post Posted: 28 Jun 2019 at 1:32pm
Make sure the fuel return line is on at the carb to return extra fuel to the tank
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