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  1. K

    need HELP! optimax WONT START

    my 98 225hp optimax wont start. it has happened before and i replaced the fuel pump in the casing and i got it to start, i used it for a few days then let the boat sit for about a week and i tried to start it up but she wouldnt go. to try to diagnose the problem i replaced the spark plugs and...
  2. K

    need help with my opti

    We just bought a used 1998 225 optimax with good compression. We put it on a 23 mako and the first time out it ran beautiful up to 5300 rpm for approximately 30 seconds then it started to sputter or misses like it was starving for gas. After slowing down to 2800 rpm it runs fine but as you try...
  3. K

    problem with 1998 merc optimax

    We just bought a used 225 optimax with good compression. We put it on a 23 mako and the first time out it ran beautiful up to 5300 rpm for approximately one minute then it started to sputter or misses like it was starving for gas. After slowing down to 2800 rpm it runs fine but as you try to...
  4. K

    Year and HP

    I have the serial number for my mercury but I dont know what year it is and what hp the guy I bought it from said it was a 2000 20hp but it looks like a 1990 the serial number is 0C193412. Cananyone tell me the correct year and HP or direct me how to look it up myself?
  5. K

    What year and HP

    i have the serial number for my mercury but i dont know what year it is and what hp the guy i bought it from said it was a 2000 20hp but it looks like a 1990 the serial number is 0C193412
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