70HP Yamaha 2 stroke precision blend Hydraulic tilt ram

[The optimist]

Having trouble tilting my 70hp Yammy. The ram seems spongy when I put some pressure on motor when lowering. I am thinking lack of pressure is due to loss of hydraulic oil. I have never had to replace seals,so hoping somebody may be able to give me the heads up. Thanks in advance

[Noelm]

Pretty simple to top oil the oil/fluid, just put the motor fully up and undo the little bolt/screw on the side, it can be tricky to get more in, because it's on the side, then cycle it up and down a few times to bleed the air out. Replacing the seals in the ram is reasonably easy, but you need a special tool to unscrew the end cap, it can be done with a home made tool, it can also be a drama to get it all apart because of rust and corrosion.

[The optimist]

Pretty simple to top oil the oil/fluid, just put the motor fully up and undo the little bolt/screw on the side, it can be tricky to get more in, because it's on the side, then cycle it up and down a few times to bleed the air out. Replacing the seals in the ram is reasonably easy, but you need a special tool to unscrew the end cap, it can be done with a home made tool, it can also be a drama to get it all apart because of rust and corrosion.

Cheers Noelm, I watched a great 20min youtube video on how to do it. Thanks mate

[The optimist]

Noelm have you got a photo of homemade tool mate??


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[Fed]

http://search.ebscohost.com/

Username: marshall
Password: public

Select: Small Engine Repair Reference Center
Select: Marine/Boat Motors
Select: YAMAHA
Select: 70 HP Model

Pages 691, 692 & 694

They seem to use a convoluted method to get any air out but I guess they have their reasons compared to cycling up & down.
I'd be topping up, bleeding, topping up, bleeding a couple of times before pulling it apart.

Good luck.