Triming up

[Rusty rudder]

Have a 2005 mercury 90hp stroke,was just put on boat with all new cables,controller,was running motor on hose today,and motor trimmed up by it self.When I trimmed it back down with the controller it would trim back up then stop then it would trim up again,always trimming up,thinking about unhooking trim bottom on motor to see if it stops.Any advise would be welcomed thanks.

 

[Rusty rudder]

Have a 2005 mercury 90hp stroke,was just put on boat with all new cables,controller,was running motor on hose today,and motor trimmed up by it self.When I trimmed it back down with the controller it would trim back up then stop then it would trim up again,always trimming up,thinking about unhooking trim bottom on motor to see if it stops.Any advise would be welcomed thanks.

I did use the motor trim switch to trim motor up and down so I could put on the muffs before motor was started.