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  1. D

    no mid-range

    I have a 1987 175HP 0n a bass boat. My problem is it has no mid-range. I have rebuilt the carbs, rebuilt the oil pump, rebuilt the fuel pump, ran Seafoam in the gas, checked the stator, dis-connected the idle stabilizer, checked compression and all cylinders were 90 psi and all even. The motor...
  2. D

    Mercury 175

    I own a 1987 Mercury Black Max 175HP serial number 0B143571.My problem is the motor starts and idles fine, but in the water when I put itin gear it will run great up to about 1200 rpm’s, after that it dies. But if Ijam the throttle all the way forward it takes off, and after it planes out itwill...
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