[jergofish]

I am also planning on a 195. I've checked both engines and believe it or not, the 150 gets better gas mileage than the 115 (4mpg vs. 3.2mpg) at cruising speed and cruises about nine miles faster (34MPH) and at less RPM. I'm definitely getting the Yamaha injected 150.

Note: I can't reference the sites but both tests were on a Triumph 195.