borncountryboy
Recruit
- Joined
- Jul 23, 2001
- Messages
- 1
I am having a problem with the trim and tilt unit on my 1985 yamaha 90HP outboard. It seems to raise OK, but neither the tilt or the trim want to go down. I have to release it with the manual valve. I took it apart and replaced most all of the seals. The only thing that I didn't replace was the down relif valve. I have inspected the down relief valve and it doesn't look to bad, but even if it was worn I would think that the fluid would leak past it all the time and not hold its position, but mine holds its position fine. It acts like the hydraulic fluid has no place to go when trying to drive the cyclinders down. Does anyone have any idea what the problem might be or have a hydraulic schematic to help me troubleshoot this?????????<br />thanx