I assume my initial valve adjustment interval was not appropriate. I had not checked the valve clearance. Yes it is a burnt exhaust valve. I ride 50-60,000 miles a year so I try to do it at least annually. Since it is my transportation there aren't many days it isn't ridden. But now since I have 2 Teneres, I have a backup bike.
I'm only waiting on back ordered exhaust valve springs to put everything back together, estimated Jan 2022.
"I would still like to hear what the valves measured at the point the photo was taken."
the mileage was 199,003 miles, Nov 4, 2020.
View attachment 87696View attachment 87697
#1 Intake both = .006. #2 Intake both= .005.
#1 Exhaust outer =.004. Inner .004 (cracked). #2 Exhaust outer= no clearance. Inner=.004
#1 cylinder = 0 psi compression. #2 cylinder = 30 psi compression.