First - Thanks for all the great info on this board, it's an incredible asset.<br /><br />Twin '88 150 Yamaha 2-stroke's. I left both motors in the full up position at the dock, did not engage the trailer lock. A few days later, returned to find the stbd motor approx 1/2 down. Was able to cycle both motors down, then back up, seem to work fine. Didn't see any leaks, or puddles around any fittings. Both tilt/trim units are original and rusty. Where should I look for the problem? Any chance it doesn't need to be replaced? <br />Thanks!