I'm looking at a 2005 Ranger Z21 in another state with a Mercury 250 four stroke on it, sorry I don't have serial number yet, salesman is sending tomorrow. He says the hours on the motor are 230 hours. The compression are as follows:
#1 cylinder =170
#2 cylinder =190
#3 cylinder =175
#4 cylinder =190
#5 cylinder =190
#6 cylinder =185
Should this fluctuation in cylinder compression be something to worry about? I haven't never owned a for stroke so not for sure? Thanks