Does anybody in the UK have a spare thin flange barrel tappet grub screw, part number 67-0276, that sits behind the barrel and presses on a ball to hold the lock pin for the 2 inner cam followers, I had to drill the old one out as it was totally butchered. I have tried all the usual sources with no success and I dont have the facilities to make one. This is holding me up so if anybody has a spare one in good usable condition please get in touch. Thanks, John