New F225 Question

[TJon]

I recently purchased a new F225 TXR. After following the Owner's Manual for break-in instructions, I returned the engine to the dealer for the 20 hour service (actually had 28 hours by then). During the service, they performed compression tests with all cylinders reporting 185, except #6 which was 200. Should I be concerned about the 15 psi difference? Shouldn't all cylinders be almost the same compression?

Thanks,
Jon

[boats.net]

Have it rechecked and make sure throttle is open while doing test. If still uneven run a shock treatment of ringfree through it.

[TJon]

Thanks for the input. You would think that a new engine wouldn't need a shock treatment of Ring Free, unless the break-in period allows the rings to get gunked up that quickly. Since I won't be back to the service tech until I hit about 100 hours, it will be interesting to see how the compression looks then. I will shock the engine with ring free next time out though, Again, thanks.
Jon