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  1. K

    1980 System A tilt trim. Will trim down, but not up

    Re: 1980 System A tilt trim. Will trim down, but not up I'm going to try that this week. The hoses for "up", are they the smaller hose or the larger ones, because both hoses end at the engine side of the cylinder. As you can see in the first picture (if it loads correctly). I had loosened both...
  2. K

    1980 System A tilt trim. Will trim down, but not up

    The motor is a 1979 90 HP Mercury, the tilt/trim is the system "A" type. It was working good during our last ski trp until I noticed that the motor wouldn't come up, I could hear the motor working in both directions and checked the fluid everything seemed to be good. Today I finally went out to...
  3. K

    1979 Mercury 90HP Ignition switch wiring

    I received the switch today and I will put it in this weekend, but there is only one problem, I am not positive which wires go exactly where on the new ignition switch. The new switch has 5 terminals and they are labeled as Battery, Solenoid, Magneto, ACC and Ground. The ground is obvious and I...
  4. K

    1979 90 HP Mercury outboard Flooding issues

    My Mercury outboard was having some issues last year with accleration and hesitation during throttle (it would die/bog down at half throttle). I took it to a reputable Marine shop and the guys there were very helpful. They told me that one of the switch box's were bad (power head) and that I...
  5. K

    1976 Mercury 90HP stalls during accelration

    I am fairly mechanicly inclined, yet I have no experience with marine engines. This is my first boat and I am experiencing some minor problems. The engine starts and runs fine when it is cold or when there is no load on it, when I get it out in the water it stalls/bogs down when it reaches the...
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