I got bored with a failed output shaft, so now I'll start an '81 timing chain clip fail thread. Here's the clip, with maybe 50,00 k's. What could have made this clip wear to the point of falling off? Too much redline? I dunno, it's not difficult to put a clip on a timing chain. Anyway the bike, she no go. Fortunately this happened in 2nd, below perhaps 2250 rpm, I have considered the prospects of it happening at much higher rpm. Fortunately again it appears, there was no contact between valves and piston crowns. I cannot see even a small contact point. There is some collateral damage inside the timing chest, however. The barrels, heads and lifters are removed. Lifters are very good at 275,000 k's, considering the life they have lived. Lots of good full zinc oil. The cam lobes are very clean as well, with a little discoloration? on the low points of two lobes. Starting on the parts list............ Oh yeah, forgot the main attraction.