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RE: R1100S TBS


I take it the two big brass screws are screwed right in.  That's a pity
because the rpm is just about spot on but I would have liked to achieve that
at about 1 to 1.5 turns open on each screw to give you something to "play"

Is/are the seals still on the butterfly stop screws?  Just a thought that
they may have been used at a previous time to raise the idle speed when in
fact the "big brass screw" jet was possibly just blocked with fuel residue
and needing a cleanout.

Clive Liddell
South Africa

Hi all,

I just performed a throttle body sync on my R1100S today, which was a bit of
a pain. That is, until I figured out the right side pulley was not entirely
against the stop, causing the butterfly valve to be ever so slightly opened.

So now everything is in sync, both at idle and off idle but I can't get the
idle rpm any lower than 1100-1200rpm. Not while keeping idle sync that is.
This seems a tad high? How important is idle sync?

It was suggested that there may be a leak between the rubber sleeves holding
the throttle bodies or by the throttle shafts. Can someone explain to me how
do I check if there are leaks?

Anyone have any tips or suggestions to share with me?


throttlemeister <at> sport-touring <dot> eu
afterburn <at> crashdot <dot> com


R1100S "Thumper"

"Why geeks like UNIX: unzip, strip, touch, finger, grep, mount, fsck, more,
yes, fsck, fsck, fsck, umount, sleep."