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    1987 Mercury 150

    What should compression be on all 6 cylinders? I done a compression test on this engine today cause i am thinking about buying the boat this engine is on. When i done the test on all 6 cylinders gauge reading was 93psi per cyinder.Is this normal? Thanks
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    Johnson 120HP V4

    I am looking at a 19ft center console to buy with 1991 Johnson 120Hp V4. My question is what is the pros and cons with this engine.I have never owned a boat with a johnson engine i've only had Mercs. I am going to do a compression test on engine what should the psi be on it.Thanks in advance for...
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    Loosing Fuel or Spark ?

    I have a 1976 115HP Merc. i was out fishing yesterday boat ran fine, i went from one fishing spot to another and boat started with no problem got a plain with no problem and then started to skip,im really thinking i have more of a fuel problem than a spark problem,but i really don't know were to...
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    Tilt/Trim HELP

    The trim motor is a External pump motor,the electric motor will spin but the motor will not go up or down was on the lake was working fine then 10mns later nothing.What could it BE ::confused:
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    Trim Help TroubleShooting

    This is a External Trim motor it will go down but not up just started today,i have crossed it over at cylenoid and can get it to trim up where do i go from here Thanks
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    Tilt/Trim

    I justed replaced brushes on motor and drained fluid but im not sure of what type to put back in,the tilt/trim motor is for a 115 IL6 yr 1976 i've been told to just put in reg. Non-Detergent 30w anyone know for sure Thanks
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