optimally at least 100 psi on each cylinder, but the most important thing is that both cylinders are 5% within each other.
185psi
I should be equal on all cylenders and about 110 to 120
125 is the least
between 90-120
should be at least 100 PSI and the difference between cylinders should be less than 10% of each
I have a 2005 and compression should be close to 120 psi. Normally a good engine will have compression between 115 and 130 psi but a leak down test should be performed also to know the full condition of a cylinder.
99% of the outboard motors need 50:1
You have to take out the cylinder, how low is it, what is the difference
A 7.5 hp outboard will need around 90 - 100 psi of compression to start up and run. Anything over this pressure is a bonus. Also, you want there to be no more than 10 - 15 psi difference between cylinders.
110
at least 100 PSI and no more than 10% between cylinders
you want at least 120 PSI on all cylinders