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Problem is that the motor is overpowered for boat and I can barely keep it running on 4 cylinders at the speed my wife likes to ski at. 17 foot Cobra. Had a 115 but blew the bottom end 2 weeks ago so took 125 off of a larger boat. I know that I should look for a 90 hp for it but would like to wait till fall and finish season with this motor.not really they are designed that way that's why they are called 2+4. I had the same motor had no problems at all skiing actually was one of my better ski motors. why what is your problem you are having