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Search: Posts Made By: YC4
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Forum: Superboat
04-06-2019, 12:28 PM
Replies: 2
Views: 2,414
Posted By YC4

21 Superboat Porpoising

I have an ‘81 21 Superboat with an ‘07 Mercury 250 Pro XS on the back. I’ve been having an issue with porpoising anywhere from about 45 MPH up to 76ish MPH (current top speed).

I’ve tried...
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