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  1. M

    1988 85HP Only Reaches 4000 RPM’s AT WOT

    Gentlemen, I have a 1988 85HP outboard that will only reach 4000 RPM’s at wide open throttle. 4000 RPM’s will push my 18-foot VIP Center Console at a maximum of 28 MPH (GPS) with only me onboard and properly trimmed. All three cylinders fire properly and the compression is 120 on each. Decarbing...
  2. M

    Should I Re-power with an older Mercury

    Good morning Gentlemen,<br />I just have a quick question. I currently have a 1988 85HP Force on my 1988 18’ VIP center console and it has been giving me problems this season. Sometimes it runs great, other times it will not accelerate over 10 MPH. The Force is a problem as it is no longer being...
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    Fluctuating Oil Pressure

    Gentlemen,<br />I purchased a 1989 Sea Ray 160 with a GM 4-Cylinder motor and OMC Cobra outdrive. The boat was a barley running project boat and it appears that the motor and/or outdrive are not original. My problem is that the valves are very noisy and the oil pressure fluctuates from 40 psi...
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