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    90 6cyl inline bog after running full throttle

    I have a 1984 inline 6 90hp merc that when I run it on the lake will run up to its max rpm of 4500 for the length of time it takes to go about 1/2 mile and then the rpm drops to 3000. if I pull the throttle back for just a second or to after this happens it goes right back up to 4500rpm for...
  2. B

    motor not reaching top rpm Intermitently

    I have a 1984 90hp inline 6cylinder merc.<br />new carb kits new fuel pump kit<br />the motor starts fine cold but after running for a while or after running at slower trolling speeds the motor will not come back up to full RPM seems to hold up at 1500-2000 RPM.Doen't help to squeeze fuel bulb...
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