All this talk of tired WBX's had me doing a compression check on my '88
Westy with 165,000 miles on the original motor.

First go around I got: 125-117-120-135
Retested with a squirt of oil in the cylinder.
130-120-125-140

Does this provide any useful information?
Would adjusting the valves improve the numbers?
Interesting that the best and worst cylinders are opposite each other.

Todd
'88 Westy