Anyone know what a compression test should read for a 01 ZR800 ?

Should be around 130 to 135 psi

With a cold engine hold throttle fully open and pull until compression gauge maxes out, typical takes 3-5 pulls. I would expect the reading would be in 135-145psi range. The readings for each cylinder should be very close to each other, like 10% of each other. A major difference between the two indicates a problem.