Honda Pacific Coast ipcrc Archives

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Carb Vacuum Pistons
Written by spacetiger_j... on 1/1/2011 at 05:13 pm


Phil,

I think thats normal. They mate up with the housing to keep them from twisting.

BTW, I am picking up a few other items and may have the naked PC (Mr Hyde)
running soon. As part of the exhaust build, I'm mounting up some oxygen sensors
so I can dial in the carbs so I'm not rich/lean. If this matches up with your
carb rebuild, you can come over and mount your carbs up and we can set them up
to run the most efficient. Perhaps by Jan end - I'm slow these days.

Jerry

Jerry

--- In ipcrc@yahoogroups.com, "Phillip Boyd" <phillip.g.boyd@...> wrote:
>
> Okay, I should probably know this because I have already taken apart and
rebuilt two sets of PC800 carbs already, but are there supposed to be small
slits in the vacuum piston rubbers? I don't recall seeing them in any of the
previous sets, but the set I just got from eBay has them in both the number 1
and number 2 carbs. They're very small - maybe 1/4 inch long and you can only
see them if you hold the carbs up to the light and flex the rubber slightly. My
curiosity is up because they seem to be very uniformly placed around the bottom
of the rubber where it joins with the piston.
>
> The seller claims he rode the bike and the carbs worked great. He's offered
to refund my money if I pay to send the carbs back, but at this point I would be
out about $20 for shipping to recover $60 - plus the time it will take me to put
the carbs back together. These are the dirtiest carbs I have ever seen in my
life.
>
> Thanks
> Phil
>