Just purchased a bass boat with a 2001 Yammie OX66 series 225 VMax with only 278 hours on it. Super nice motor,...and one of my purchase criteria was that the boat be powered by a Yamaha. From what little I've been able to ascertain, I think the OX66 refers to the type of fuel injection installed on the engine. I also believe it to be a salt water series motor,...but it has only EVER been used in freshwater. Can anyone clarify more about this particular engine, i.e., compression numbers, what OX66 refers to regarding the fuel injection, and what makes it internally different fro it's 2001 stable mates? Thanks,...I'm a gear head, so my curiosity is driving my need to know !!
If ya can't explain it simply, you don't understand it well enough.