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My motor is also a 9.9 converted to a 15, I should have mentioned that in the original post. A 9.9 converted to a 15 isn't a TRUE 15 because they have two different exhaust pipes. In this video the guy does a before and after speed test for a converted 9.9 johnson. 9.9 johnsons and...

Do you need a view of the boat flipped over, like the second picture of the duranatic shows? I was hoping that the pictures of the underside of the boat and the transom would be enough. I'll have to take all the gear out of the boat and take the motor off to flip the boat over. Is there any...

So I currently own a 9.9 evinrude with this 12 ft rowboat. I've put a lot of work into the motor and I still can't get over 10mph. There are many videos on youtube of guys getting to 20-25mph with the same motor on 12 ft boats. Here is one such video https://youtu.be/M_OZ4Qa7H9g I've been...