Is 95 psi enough compression for an outboard motor. Looking at buying a boat and was told the compression check showed 95 psi on all cylinders. Good or bad?

2 stroke or 4 stroke motor? If it’s a 2 stroke then I’d be okay with it.

Told? Get it in writing.

Depends on the motor.
95 is fine on a old Johnson.
On a V6 merc it would be sick.

2002 Mercury 2 stroke.

My old 96 Johnson 150 has 120 on all 6 so I’m not sure. What kind of motor and year? The

HP?

I know a 90 hp has about 120 psi in that year model range.

always take a compression gauge, some lube and a plug wrench to survey a boat

Compression gauges can vary from one to another. What you’re really looking for is a misfit cylinder. Sick motor will have five at 120 and one at 90. On your three cylinder take all the plugs out, pull the kill switch and spin each hole. If they are all the same it’s what you want. If one is more than 10% different there is an issue.

Leak off test

Thanks for the replies, passed on the motor.

Compression check is really only to determine if you have bad cylinder. If you want to know the real health of an engine, a leakdown test should be performed.