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Posted by Ulysses on April 17, 2008, 11:25 am
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>
> > Hi.
> >
> > I have a Sears Gamefisher 7.5 HP outboard motor that's about 25 years
> > old. The carburator has a little reddish-brown rubber(?) bladder type
> > thing that is inserted inside a hole about 3/8" diameter on the
> > engine/throttle side of the carburator. It is about an inch long, has
> > a hole in the end, and fits over a small hole next to the intake on
> > the engine. I cannot find it on either of two parts diagrams for this
> > specific carburator. The one I have has a split in it and I'm pretty
> > sure it's not supposed to. Can someone tell me what this part is and
> > what it's for? Is this something that needs to be replaced during
> > routine maintenance? The only thing I can figure is maybe it's some
> > kind of automatic primer bulb. Tecumseh seems to like primer bulbs.
> >
> > I emailed Tecumseh and they sent me my second parts diagram but
> > offered no advice.
> >
> > Thanks.
> >
> >
>
> Hi
> The part you describe is a fuel pump diaphragm. If it is split it will
> cause flooding. If you cannot find a correct parts diagram to order a kit
> you can go to a lawn mower repair shop and get one, they come in new kits
> for diaphragm carbs and most of the younger generation do not even know
> what they are for, but they probably have a few left over from carb kits
> that they would probably sell you for little or nothing.
> Scott
It's odd that neither of my parts diagrams show that part. Otherwise the
diagram appears to be identical to my carb.
Now that I know what to call it maybe I'll have better luck searching.
Thanks.
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