Yeah it was touchy at 45. Not a problem until you started crossing the wakes of other boats. Did a lot of fishing for it. I still run that motor in a little outrigger I have. It's kind of a bear to tune. Seems like with the single needle carb it has to be slobbering rich at idle to be correct on the high end. Takes a little time to clear it out and get it on the pipe. If anyone has any experience with this motor I'd like to hear how they are doing with it.