I have had my boat out the last two days trying to setup my new prop. Both days I let the motor warm up at the dock for about 5 min. I then took off down the river about 3000 rpms and trimmed down about 3/4 of the way. Both days the motor started missing real bad and actually lost power made the boat came off plane. Took off again and as long as I wasn't running around 3000rpm and had the motor trimmed down it ran fine. Is this a sign of a future problem?