Lauson carb leaks like crazy! - - The Friendliest Tractor Forum and Best Place for Tractor Information
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post #1 of 3 Old 04-08-2010, 06:43 AM Thread Starter
MTF Junior Poster
Join Date: Apr 2010
Location: Delaware
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Lauson carb leaks like crazy!

I was given a Troy Bilt Horse (I think it was made in 1973). The Lauson carb leaks out of the carb air inlet. It drips about 1 time per second. The more fuel in the tank the faster it drips.

The float (copper) is fine with no fuel or water in it.
I just replaced the needle and rubber seat attached to the float. With the bowl off I could easily shut off the fuel using the float.

The thing continues to drip.

Any ideas how to fix this problem?
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post #2 of 3 Old 04-08-2010, 08:56 AM
Old Stonebreaker

Join Date: Mar 2005
Location: Idaho
Posts: 3,398
Re: Lauson carb leaks like crazy!

I don't know what make of carb is on my Briggs powered horse, but I found the tab on the float was worn down enough the float was contacting the carb body which kept the needle from seating tight enough.
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post #3 of 3 Old 04-09-2010, 02:34 PM
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Join Date: Oct 2008
Location: Laconia, N.H.
Posts: 704
Re: Lauson carb leaks like crazy!

Float needs to be reset. It is set too high. or the seat is not set in all the way.
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