Yes, Bob, I have already discovered that problem with the older slides! I also saw that current photo on the Webra site and the stop screw fix.

Since I have no way of drilling and tapping the slider I thought up another fix. I was going to try and find a longer threaded rod and have one end extend far enough to actually hit the crankcase where the carb mounts. The length of the threaded rod could be adjusted to make the wire stop at the desired spot. Maybe my photo will make my idea clear.

David