My newly rebuilt SU carbs were installed a couple of months ago and are
working nicely. I used the TRF rebuild kits, which were fine. Prior to
rebuilding, I sent the bodies out to a very popular company for rebushing
and new shafts. That's where the problem came in, and I'm just passing it
along for information for others contemplating the same thing. When I got
them back, they looked great and I started reassembling them. When I
mounted the throttle stops to the shafts with new tapered pins, I noticed
that, even with no adjustment screws installed in the throttle stops, the
butterflies didn't quite close and the stops were bottomed out. They were
nearly closed, but I could see daylight and I sure didn't want them partly
open when I was trying to adjust the slow idle speed. My conclusion was
that the holes in the shafts were drilled slightly at the wrong angles.
So, Sumner, who was the company?