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Vacuum ports
Vacuum ports
All you have to do is with a tiny drill (like #57) poke through the last mm or so.
If you remove the pilot screw you can see daylight right through.
The port is 6mm for the hose but steps up to 7mm for the press fit into the hole.
Some locktite will probably help.
Got some on order from Hermy’s senior (610 562 3155), not the son who runs the BMW/Triumph dealer.
Richard Chawes
Re: [R90SWORLDNET] Vacuum ports
to know the favorite and most effective tool for tuning and balancing the
cylinders.
Denny
75SS
Re: [R90SWORLDNET] Vacuum ports
I like the shorting method, as it costs little to nothing, and is very accurate. That method….AND OTHERS….are fully discussed, here:
https://bmwmotorcycletech.info/synchcarbs.htm
The method I most dislike hearing about is adapted from the method BMW promoted for the PRE-/5 models….well, perhaps better said, the magneto models…in which the spark plug caps are removed and re-connected, back and forth. It's not at all safe for the later models (/5 onwards) that have coils, but no safety gaps….and, is not all that accurate, either.
Snowbum