One of my two 2005 yamaha 150 four stroke Power Trim/Tilt system is having a hydraulic fluid leak. The motor at one point was stuck in the up position which I was able to remedy by putting in more fluid. It lasted about a week and then recurred again requiring a fair amount of fluid to get it to work. Now I can see a small oil slick around the engine as it continues to leak (again won't work). I can't see/feel a leak around the reservoir cap or see or feel leaks around the pistons. Any ideas on where these can typically leak from. One of my problems is that my boat is a catamaran and I don't have a trailer and where I live there are no trailers I can easily borrow to pull the boat. I am hoping to trouble shoot as much as I can with the boat in the water before having it pulled. Any help is appreciated.
usualy they leak from the two short rams caps, the top seals are leaking,you have to remove the caps with a spanner wrench and replace the 3 seals and also check for worn cap hole where the ram is going thru. if the hole is oval they will leak again soon