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4 stroke 9.9 loss of power

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  • 4 stroke 9.9 loss of power

    FT9.9 ERLD The motor seems to run at 50% of WOT usually after warming, sometimes takes longer than others. I have went throught the entire fuel system carb, fuel pump, tank, bulb, filter. I understand there is some type of oil pressure sensor as a safety device that could be shutting it down. Where is this located? How can it be tested? How can I check the oil pressure there is no gauge? Would synthetic oil have an affect good or bad?
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