According to the manual I need some more hrs. According to the guy at the boat shop he says I have it losened up now and the rings seated and told me to just go fishing, but not to let it idle very long at a time and to vary my speed while driving for the rest of my 10 hrs. and not to hold it at WOT for very long untill the 10 hrs. is up. I have 4 hrs. run time on it at the RPM ranges that the manual called for.