From:Steve Thielicke e-mail:steve@prestoncycleworks.com
Subject:RE: Early 1929 - set-screw exhaust Date:Sun Feb 23 19:46:41 2014
Response to:5009
I have a set of 4 of these cylinders, the other 3 are not drilled or tapped, looks like someone started to drill and tap this one though.
Steve

----- ORIGINAL MESSAGE FOLLOWS -----
Early 1929 KJ exhaust systems were attached to the cylinders by "set-screws" in the cylinders rather than by the "big nuts" on the pipes of later-1929, 1930 and 1931.

But I've never seen one.

Does anyone have a bike with set-screw exhaust? Or cylinders with the tapped holes for same?

Dave