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Display Mesage #94373


Carb balancing - how hard is it?
Written by awhombre on 6/22/2010 at 08:47 pm

Here's a little added benefit from my carb balancing recently. I did mine just
to see where I was after owning my PC for a few months. They were very close.
Someone had mentioned making the mixture a little richer than stock from the
factory. The screw was at about 7/8 of a turn and I put it at 1 1/4. My worst
mileage before was close to 40mpg and now I'm getting near 50mpg and a high of
53mpg. I generally ride fairly fast so didn't expect a miracle. That's an
amazing result. Between the carb balance and this change I'm really pleased.
Something to think about when you tackle the job. Great site and great
information on it. Tony

--- In ipcrc@yahoogroups.com, Wolfgang Kaufmann <pc800@...> wrote:
>
> David schrieb:
> > I don't know how others are doing this, but I had no luck with applying vac.
to the petcock and then pinching the hose off.
>
>
> I used a injection syringeto apply vacuum to the petcock - worked great !
>
> --
> Regards,
>
> Wolfgang Kaufmann (Austria/Europe),
> iPCRC # 634
> in order of purchase :
> PC800 `90, "Mazda Baby", 89 K miles (1992)
> PC800 `96, still unnamed, 15 K miles (2000)
> PC800 `90, "Harlequin", 53 K miles (2002 - completely restored project bike)
> new in my stable:
> PC800 `96, still unnamed, 9 K miles (2006)
> PC800 `89 - nice little miniature (2007) ! (does this count too ??) ;-)
> http://tinyurl.com/2fokje
> http://www.mtc81.at/pc800.htm (in German language)
> http://tinyurl.com/ysqcqp
>

Message Thread for message #94373

pc800dork
6/21/2010, 03:05 am
Carb balancing - how hard is it?
What panels have to be removed to get to everything? Any good tutorials here?

    nathan_c_harris
    6/21/2010, 03:58 pm
    Carb balancing - how hard is it?
    It sounds harder than it really is. Go online and look up the $1.55 Carb Sync tool, build one. Super easy. Hardest part was getting the ATF down into the skinny tube. Now, since Carb Sync is done at idle, you can do it with the Air Filter

      israel_96gtp
      6/21/2010, 06:56 pm
      Carb balancing - how hard is it?
      "Hardest part was getting the ATF down into the skinny tube." Referencing building the $1.55 balancing stick, after doing it the hard way myself, the easiest (and most duh-simple) way to get the fluid in to the tube is t

        nathan_c_harris
        6/21/2010, 07:01 pm
        Carb balancing - how hard is it?
        Ha! Yeah, that's WAY to easy. At least this way even though it only costs a $1.55, you really feel like you *should* have paid more since it took like an hour to get it in and another few for it to settle. Doh! --- In

          pc800dork
          6/21/2010, 07:09 pm
          Carb balancing - how hard is it?
          THANKS GUYS! That sounds like a fun job to put off until I have a nice cool day of 90dg or lower! Sucking the fluid into the tube from one end is a GREAT idea. --- In

            elden_miller_96
            6/21/2010, 07:38 pm
            Carb balancing - how hard is it?
            I built mine & affixed it to a board to be left hanging in the garage. Over time the ATF settled itself into place. Of course I constructed mine in the dead of winter but I am sure in the heat of summer it may settle in quicker. In th

              obijuanak
              6/21/2010, 07:46 pm
              Carb balancing - how hard is it?
              Of the port is not open, then no fuel will flow to the engine and it won't run. Thus, you won't be able to synchronize the carburetors. Sent from my iPhone On Jun 21, 2010, at 11:38, elden_miller_96 <

                elden_miller_96
                6/21/2010, 08:56 pm
                Carb balancing - how hard is it?
                Juan, I did not have to disconnect the petcock hose. Both ports for syncing the carbs were available without pulling the petcock hose. I just attached hoses to the columns & adjusted away. Now I am not sure if I did it right. BTW - bo

                  daviddockstader
                  6/22/2010, 01:39 am
                  Carb balancing - how hard is it?
                  What's your petcock hose connected to? From the factory it comes connected to the balancing port. Did someone already put in a T with a cap? --- In

                daviddockstader
                6/22/2010, 01:35 am
                Carb balancing - how hard is it?
                I don't know how others are doing this, but I had no luck with applying vac. to the petcock and then pinching the hose off. I used a T fitting so I had constant vac. on the petcock. I do agree with everyone who says this makes a big differenc

                  wkaufmann2000
                  6/22/2010, 06:50 am
                  Carb balancing - how hard is it?
                  David schrieb: > I don't know how others are doing this, but I had no luck with applying vac. to the petcock and then pinching the hose off. I used a injection syringeto apply vacuum to the petcock - worked great ! -- Regards

                    awhombre
                    6/22/2010, 08:47 pm
                    Carb balancing - how hard is it?
                    Here's a little added benefit from my carb balancing recently. I did mine just to see where I was after owning my PC for a few months. They were very close. Someone had mentioned making the mixture a little richer than stock from the factory.

                      gclarkv
                      4/20/2012, 12:32 am
                      Carb balancing - how hard is it?
                      I think my PC runs rich, so I'm interested to know how yours has fared since you adjusted the mixture. Any problems from running too lean? Overheating? Pinging? Still getting great gas mileage? Thanks, George --- In

                        wynndungey
                        4/20/2012, 07:17 pm
                        Carb balancing - how hard is it?
                        Changing the idle mixture is pretty easy. Changing the main, requires changing the jets or needles. If your jets haven't been screwed with, maybe a carb sync will get you back where you want to be. Otherwise, a full carb rebuild could be in y

              dndgentili
              6/21/2010, 10:27 pm
              Carb balancing - how hard is it?
              My guess is that way you will continue to get gas flow to the carb. bowls. VA Dan --- In ipcrc@yahoogroups.com, "

          israel_96gtp
          6/21/2010, 07:11 pm
          Carb balancing - how hard is it?
          Trust me, I did it the hard way -- pretty sure (and this was 10 years ago...) that I tightly gripped the tube in my hand, using my palm as a funnel, and created a complete mess trying to fill part of the tube. Figured I would share a tidbit o

    skyeenter
    6/21/2010, 04:47 pm
    Carb balancing - how hard is it?
    Dork, here are the steps I do: Ride bike for 20 minutes or let idle until fan comes on and goes through a complete cycle of on/off. Remove: Lid/Vent covers - remove screw holding side cover on, careful this screw is thre