Message text written by INTERNET:Eganb@aol.com
>I'll still be replacing the diaphragms, but here's another question --
put the piston/diaphragm assembly back in the carb, is there a correct
orientation? On the bottom of the piston are two openings -- should they
pointed in a particular direction, like towards the mouth of the carb and
air cleaners? I probably didn't pay attention to that before, and I would
suspect for correct air flow/operation, the "orientation" of the piston is
Two things to look for: 1) the two small ports go on the down-strream side
of the venturi and 2) there is a small tab on both the outer edge of the
diphram and the inner edge. The tab on the inner edge goes in a depression
in the piston and the tab on the outer edge goes in a depression in the
carb body. Orienting the tabs properly will orient the piston correctly.
A no-brainer once you realize that.
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