View Full Version : 90 HP Yamaha Trim Problem

04-07-2006, 04:51 AM
"I have a 1995 Yamaha 90hp 2 stroke. When the motor is trimmed up (without the trim towing latch locked) the motor slowly drops down after a few hours. If I trim the motor up and down a few times then lower it using the bleed (? on side of outboard bracket) screw, then tighen the bleed screw) and trim motor back up it is ok for a few days. What is the problem?
Thanks Duncan"

04-07-2006, 03:14 PM

I am assuming that when you refer to a "bleed" screw, you are talking about the manual release valve, which allows you to raise and lower the engine by hand.

Maybe the o-ring on the valve needs to be replaced, or maybe the valve is damaged.


04-08-2006, 09:41 PM
"I had the same problem with my '94 Yam 90. After exercising the manual release valve screw a few times and then tightening it well, the downward movement stopped."