1996 mercury outboard 125 2 stroke power problems

by Nic
(Salt Lake City, Utah,USA )

I have a searay boat with a 125 mercury 2 stroke.it has sat for 10 years being started once a year or so to make sure she ran. It runs flawlessly, starts right up and takes of good but it is like it never plains out sense it never gets up to full rpm. Like I said the motor is all but new maybe 40 hours on it so not a compression issue, I have changed the plugs even though they looked new. I was just wondering if there is some kind of a sensor or something in the linkage etc etc that could be a easy fix. I have read a little about these motors on blogs and such and it seems you either really love this motor or you really hate it. So any advice would be greatly appreciated. Nic

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