Walbro SDC Carb. Using the thick or thin pump side gasket

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I'm sure some new users have this question.

Walbro SDC pump side gasket. Choosing the thick one or the thin one in the kit.

I had always assumed the thicker gasket on the pump side was reserved for the carbs not calling for the check valve diaphragm. That seems to be generally true.

I contacted Walbro via e-mail and got the part numbers for the thick and thin gaskets. The IPL's which you can find on Walbro's site will verify which one to use by carb model number.

Parts and Services --> parts lookup ie SDC-44

You can also look by saw manufacturer ie McCulloch, Homelite etc. and reference from there by saw model.

Thin gasket 0.031" +/- .003 PN 92-93

Thick gasket 0.062" +/- .005 PN 92-108
 
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