Thanks everyone! I'm learning a lot about my 750 here, and I appreciate your replies.
... Are you just doing some work on the bike and then putting the stock exhaust back on?...
Nope! I actually removed my original stock 4-4 exhaust and installed a 4-2 hardly baffled collector system within a year or two after buying my K1 new in 1971. I've only now removed the 4-2 exhaust in anticipation of receiving my no-stamp Busso pipes via David's group buy.
I took the bike for a short, very mild ride, down the block and back the other day without any exhaust installed, and that's when I first noticed the center stand was contacting the chain. And I can tell you now, that it doesn't take long for the chain to start wearing it's way into
(the foot of) the stand if it's contacting the chain.
ZT