Join Date: Nov 2009
Location: Lander, Wyoming
Have you cleaned off the old gummy chain lube with kerosene? Kerosene may lube the old O-rings enough to limber it up.
If you have cleaned it and it still has stiff links, I'll suggest that it was run Too Tight at some point and internally galled'ed the rivet pins and bushings. Replacement required.
I usually use clip type master links. Keep your new chain loose enough to lift the lower run up to the rear tip of the rubber slider under the swingarm.
Modify at "YOUR OWN RISK"!
Still riding my 1987 KL650-A1. 84,000+ miles & counting