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Author Topic: vacuum ports  (Read 1255 times)

Vegasrandall

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vacuum ports
« on: December 23, 2010, 07:59:22 PM »
does my 1980 w/ the smog fittings have vacuum ports for balancing the carbs?

Offline montmil

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Re: vacuum ports
« Reply #1 on: December 23, 2010, 09:45:07 PM »
If you have Bing CV carbs, the vacuum ports are on the bottom of the carb; usually closed off by a short, closed end rubber tube or a small screw.

Monte
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Crossrodes

  • Guest
Re: vacuum ports
« Reply #2 on: December 24, 2010, 12:03:35 AM »
My '79 which has the flat top Bing carbs has a screw in a pipe at the bottom of the carb.  Your '80 may be the same.

Offline Rob Valdez 79 R65

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Re: vacuum ports
« Reply #3 on: December 24, 2010, 01:09:23 AM »

Offline montmil

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Re: vacuum ports
« Reply #4 on: December 24, 2010, 07:05:02 AM »
Thanks for the photo, Rob. I searched my pic files for something similar and never found nada.

Monte
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet

Vegasrandall

  • Guest
Re: vacuum ports
« Reply #5 on: December 24, 2010, 08:37:07 AM »
didn't peek under there,thanks

Offline montmil

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Re: vacuum ports
« Reply #6 on: December 24, 2010, 08:54:47 AM »
The 'search' feature ain't working for me.

I was looking for the El-Cheapo Bing Vacuum Adjustment Tool so Randall could get ready for a tune.

Monte

OK, here's the good one from Hugh Kenny of the Airheads Beemer Club:

http://www.airheads.org/content/view/183/98/
« Last Edit: December 24, 2010, 09:44:16 AM by montmil »
Monte Miller
Denton, TEXAS
1978 BMW R100S
1981 BMW R65
1983 BMW R65
1995 Triumph Trophy
1986 VW Cabriolet