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  1. K

    Mariner 115 2+2. Bottom plug fouled

    Folks,<br /><br />The bottom plug on my Mariner 115 2+2 keeps getting fouled with fuel. When the motor reaches about 2000 RPM the motor starts to shake. The compression and spark are good according to the marina. They have run SeaFoam through the motor, checked the High end stator, and checked...
  2. K

    Gas Mileage 3.7 170hp mercruiser

    I have a 19 foot wellcraft with a 3.7 mercruiser I/O I was wondering what kind of gas mileage can I expect to get, like how many miles per gallon running at say 3-4K rpm <br />basically cruising speed. Gas gauge is broke just got the boat and didnt replace gauge and or sending unit yet but the...
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