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  1. vanderkool

    Mercury 90HP Optimax problems

    Last December I purchased a new Cypres Cay 20 foot pontoon with a 90 HP Mercury Optimax. The manual that came with the new optimax said the first hour change the rpm every two minutes. Then the next three hours run the RPM's between 3000 and 4500 changing every 10 minutes. Once this was...
  2. vanderkool

    Proper Break-in period for 90HP Optimax

    Last December I purchased a new Cypres Cay 20 foot pontoon with a 90 HP Mercury Optimax. The manual that came with the new optimax said the first hour change the rpm every two minutes. Then the next three hours run the RPM's between 3000 and 4500 changing every 10 minutes. Once this was...
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