On a four day ride last week, I was often riding in triple digit temps. My 96 1100GS would start off running quietly as usual, but after a while, it would knock and rattle in the right cylinder. The valves were adjusted in the last 1K. After the bike would cool off, it would go back to running without the knocking/tapping in the right cylinder. I run Castrol 20-50 MC oil and the level was checked each morning before riding, and it was fine.
I come home and it's cooler and rode around town and no knocking/tapping in the right cylinder. Anyone have any idea what the heck is going on?
I would greatly appreciate any and all thoughts on the matter.