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  1. C

    Gas Shooting Out Spark Plug Hole

    have i/o mercruiser, in ck compression with spark plugs out, when turning key, gas is shooting out of no. 6 spark plug hole. any ideas?
  2. C

    motor knocks under load

    i have mercruiser ser#3965251 under load it knocks, at idel it runs somewhat smooth. would out of time be my problem, please i need help would you tell me what year it is. thank you.
  3. C

    HELP, first time boat owner

    hi, need some help, we are first time boat owners, have mercury i/o motor 165 h.p., think year is 1980. first question, can someone tell me where serial no. is? second, when we put the earmuff on and attach water hose, water comes out center of prop, is this correct. thank you
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