Not burning oil. 110K miles. I parked it yesterday and pulled out the motorbike to ride until I figure out what I'll be doing.

I notice small pops in exhaust presure. Intake vac is smooth.

I checked all cylinders compression yesterday and all but this cylinder were 170 to 180 psi. This one was 35 psi.

I have not leak tested yet, however I feel an exhaust valve is the bad animal. I was hoping the waveform was showing valve bounce.

I looked into the cylinder and the portion of the valve I could see looked very good.

Thanks for you input. I really don't want to pull the head.

__________________
1983 500SL Euro