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2007 Yamaha FX HO (210 hours good compression) has some type of power loss issue at top end. This occurs randomly, but I think it's usually after I run it for a good bit.
It goes from 55-58mph down...

Well we got it figured out, turned out to be the throttle body control, but it was throwing the 124 code {TPS) for some reason in case anyone else has this issue.

Hey all new to the forum, my BIL just got this jetski and it was running great on the hose, etc when he bought it. Took it out yesterday, lost power on the water, and throws code 124. After tinkering...