The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Vegasrandall on December 23, 2010, 07:59:22 PM

Title: vacuum ports
Post by: Vegasrandall on December 23, 2010, 07:59:22 PM

does my 1980 w/ the smog fittings have vacuum ports for balancing the carbs?

Title: Re: vacuum ports
Post by: montmil 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

Title: Re: vacuum ports
Post by: Crossrodes 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.

Title: Re: vacuum ports
Post by: Rob Valdez 79 R65 on December 24, 2010, 01:09:23 AM

(https://bmwr65.org/smf/proxy.php?request=http%3A%2F%2Fwww.pbase.com%2Ftomfarr%2Fimage%2F128040350%2Fmedium.jpg&hash=d8421bf7bf467722aad1b69971a9d68a9fe139f5)

Title: Re: vacuum ports
Post by: montmil 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

Title: Re: vacuum ports
Post by: Vegasrandall on December 24, 2010, 08:37:07 AM

didn't peek under there,thanks

Title: Re: vacuum ports
Post by: montmil 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/