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    1986 Mercury 90 hp 6 cylinder only running on #2, 4 and 6 cylinders

    Only has spark in the even numbered cylinders. Any ideas what to look for? New plugs, new fuel. Any thoughts where to start?
  2. G

    Mercruiser 5.7L with low voltage to coil

    I measure 12.5V at the battery and 11.3V at the coil and with key left on for a bit the voltage drops to 10.8V. Any suggestions why I'm not seeing battery voltage at the coil and the voltage is being lost? Where to check?
  3. G

    30 hp ELHPT serial number help

    I'm buying the motor listed above, it has serial number 0R680358 Can anyone tell me what year this engine was manufactured from my serial number? Thanks!!
  4. G

    Silly question: Buying a new 30hp EFI Mercury

    Can anyone tell me what is included from Mercury with a new engine purchase? My dealer says no prop is included... seems silly but OK. Is a gas tank included? Thanks!
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    Temp gauge problem, please help!

    Water temp gauge works (reads resistance) until it hits 150, but as temp continues to increase, it goes to 0. Pick up speed and once engine temp drops the gauge starts working, but it will only read below 150 deg. I have a 160 deg thermostat, so the temp reading of the gauge with the engine...
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