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Posted to rec.crafts.metalworking
Roy
 
Posts: n/a
Default OT Primer on a snowblower, how does it work?


The primer button (bulb) on my 12 HP sears snow blower developed
a tear in it and the blower would only work while the fuel tank
was fairly full (3/4 or more) I replaced the primer assy and was
very much surprised to find out that all the button seemed to do
was to force air into a single line. To that point, I had
assumed that there would be an in line and an out line and the
button would force gas into the carb but of course the needle
valve in the carburetor bowl would prevent that, unless it were
open. So without wishing to tear all the covers off to find out
what goes where,, could someone provide me with some kind of a
word picture or link that describes how this primer assy, that
appears only to push air into a line, actually primes the carb.

Thanks