Recently when trying to get my boat on plane when I first start out and throttle up the motor starts pulling then the rpm,s start goin up but the boat doesnt go any faster ( feels like its slipping).When i back off the throttle then power up again ( sometimes twice) it will run fine. It only seems to do it when its cold then the rest of the day I wont have any problems.I shouldnt say cold because I have a 200yd no wake zone that I kinda putter thru before I can power up.I dont hear any grinding and it doesn,t slip out of gear because when I back off the throttle it will still pull. Anyone ever had this problem?...Thanks Scott