Recent content by Rstacy

  1. Rstacy

    Suggestions for a 1978 TOP 900 coil

    I have a 1978 TOP 900 serial #4848720. I have owned it for about two years. Top end power is very good. The carbs were cleaned before I got it. The idle has always been rough and has been steadily getting worse. Last night it actually bogged during acceleration. It only did it once but ran...
  2. Rstacy

    Trim Gauge

    I am looking to add a trim gauge to my 79 Merc 900. There is no sending unit on there at this time. Does anybody make a complete kit for this outboard that would include gauge and sending unit?
  3. Rstacy

    Tilt trim motor problem

    My boat is 1979 Baja with a Merc 90 on it. Last year the tilt/trim motor started stalling. I would tear it down, find nothing and it would run again for a bit. Both up and down solenoids are good and full voltage is getting to the motor. It got so bad that I drilled a small hole in the end bell...
  4. Rstacy

    This boat likes to go right!

    The boat is 79 Baja with a Merc 900. Let go of the wheel and it will turn right all day long. The higher the speed the quicker the turn. Turning left can require two hands! I did the research on this site and found that the trim tab on the outboard will help this. The problem is that the...
  5. Rstacy

    Help identifying the trim pump and correct replacements

    The trim pump on my 79 Baja with a Mercury 900 has been locking up frequently enough that I think its time for a new pump. ​Every time it locks up I have to disassemble the pump to find that the motor/small gears have jammed. I have cleaned the pump and motor and it works for a short time but...
  6. Rstacy

    Frozen 350

    I bought a Thunderbird with a frozen 350. All attempts to free it up have failed. I have an automobile 350 with 4 bolt mains from a project that never materialized. I have been told that I have to change the intake manifold and the camshaft. Aside from that are the engines pretty much swappable?
  7. Rstacy

    Can you help me to understand this explanation from CDI on my charging issue?

    Let me start by saying that CDI is very quick to respond to email questions. I appreciate that. I have a 1978 Merc 900 that is putting out about 20 volts. I bought a CDI regulator/rectifier to cure this but the motor started surging at WOT with the CDI unit. I sent CDI a note explaining the...
  8. Rstacy

    1978 Mercury Tower of Power 900 lost power after CDI regulator/rectifier installation

    I have a 78 Mercury 900 that was running great but putting out way too much voltage for any of today's add on electronics. It had the original rectifier only configuration. ​After some research I purchased the more expensive CDI regulator/rectifier over the cheaper solutions. ​The CDI unit did...
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