Model #917387240 CRAFTSMAN Walk Behind Lawnmower, Gas

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Q:

Primer button Mower 917387240

A:

Thanks for the inquiry and for using SearsPartsDirect.com.
These primers are pretty straight forward to replace. I would start by taking some pliars and rip the old primer off, don't worry about damaging it since your going to replace it. Then get a little straight edge screwdriver to get the retainer out of the bulb body on the carb. Clean the primer housing after the ring is removed. Once cleaned, you can use a deep socket over the new primer and lightly tap it into place into the primer housing.
To give you a visual reference, I have provided a link below for a video you can watch on how to replace a similar primer assembly.

Primer Bulb Installation Video

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

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Jeff Wallace Sr -
Sears Technician
July 01, 2014

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