I should be equal on all cylenders and about 110 to 120
125 is the least
anything over 100 on all cyl is fine and a good motor
i have a mercury outboard motor the serial# is G034632
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between 90-120
55 hp.
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It should be some were between 120 to 125 on all 6. That would be on a motor in good condition. 115 to 120 is not bad. Just make sure they are witnin 20percent of one another.