'05 Mercury 40hp r stroke efi bogs at high speed

gump4696

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Aug 16, 2015
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Motor runs perfect at idle and up to 2,200 rpm, any more throttle and it falls on its face, misses sputters and will not go... I'm guessing a fuel issue, I changed fuel line and prime bulb and spark plugs, didn't make a difference.
 
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