I have a 2004 Yamaha OX66 150hp engine, it is on the rear end of a Skeeter ZX190.........


With a full tournament load and two people in the boat I see around 58mph at max, the prop is a little scrapped up too though.


I was wondering if the hydrotec phase 2 would get me close to 70? is there a phase 3? How hard is it to install these kits, I have a friend that worked in a marina as a tech so I am sure he could install it with me. Does the engine need to be retuned?

Thanks for any help........