Model #917387440 CRAFTSMAN Walk Behind Lawnmower, Gas

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Question and Answers

Q:

won't keep running 917387440 Craftsman Rotary mower

A:

Thanks for the inquiry and for being a valued member.

I am sorry to hear of the issue you’re having with the mower. I know how frustrating that is.

This sounds like an internal blockage within the carburetor. I would pull the carb from the engine. With a full can of carb cleaner, a wire brush, and a bread tie wire to poke through and clean the main jet; I would recommend a very thorough cleaning. Start by taking off the float bowl. Douse it very liberally with carb cleaner, and undo the pin for the float, and remove the needle and float. Clean them very thoroughly with the wire brush and carb cleaner. Pay close attention to the seat the needle sits in and clean it well. Once clean, start brushing the carb bowl and body and make sure you get all the varnish out. It may take three or four brushings with carb cleaner dousing in-between. From there, take the straw of the carb cleaner and shoot carb cleaner through any little hole or passageway of the carb. Shoot out the throat of the carb and poke the main jet with the bread tie wire. You have to make sure you get everything the first time, if you leave anything behind, it’s likely to reclog once you have it reassembled. 

I hope this helps and thanks for using SearsPartsDirect.com. We appreciate your business.  

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Jeff Wallace Sr -
Sears Technician
July 09, 2015
Q:

Craftsman mower model 917.387440 grass bag bracket broke. Does this bracket come with new bag?

A:

Hello, I see your Craftsman mower grass bag bracket broke. While you are waiting on an expert you can visit our PartsDirect.com website. I attached the link below. Hope this helps!

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Dezeray S -
August 02, 2010
A:

Thanks, but I already tried that. The bracket is not listed or shown there. That is why I asked the question.

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RooneC -
August 02, 2010
A:

Yes, the bracket will come with the new catcher assembly.

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XX Wade_ -
Sears Technician
August 03, 2010
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Q:

I need the float adjustment on a 6.25hp lawn mower model 917.387440. It leaks gas.

A:

Most floats don't have an adjusting tang on them anymore. If you can adjust the float the clearance is 015.

If fuel is running out of the primer or a hole in the carburetor, the seat the float needle fits into probably has debris in it and the needle can't stop the flow of gas.

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Jimmy K -
Sears Technician
August 07, 2009

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