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    Stumbling Merc. 150

    I've got a 1985 Merc. 150 that just recently began "stumbling" between 1500 and 2000 rpm. It feels as though she is fouling plugs in that rpm range but when I pulled the plugs, all six were very clean. It runs great up to 1500 and from 2000 to WOT. I normally run 89 octane w/ Merc. Quickleen...
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    Merc 150 voltage output

    Hello everyone. I just joined the forums and am hoping you can help me resolve a sporadic problem I'm having with my outboard.<br /><br />The engine is a 1985 Mercury 150 Black Max. Since I installed a new Furuno fishfinder this year that reads battery voltage, it sometimes flashes "input...
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