Help needed on used motor

[DMT78]

I'm thinking of buying a 2000 115hp Yamaha. I ran the boat 18ft alum. hull and motor, cranked right up, never missed a beat, and ran the boat up around 40-45 mph no misses or strain. I was wondering if I should go ahead with the deal, or get compression checked anyways? Could this be a hidden problem? Thanx

 

[rodbolt]

Re: Help needed on used motor

if its a two stroke a compression test is ok. if its a four stroke do a leakdown test on it.

 

[DMT78]

Re: Help needed on used motor

It is a two stroke