Re: 86 Mercury Starts but won't run, HELP ME!!!
Just for fun,<br /><br />If I was stuck at sea with your delema, I would, first check all my fuses. Paying special attention to fuel pumps, and or electronic ignition. I would turn of my battery switches (engine off of course). And check all my fuses, cleaning them up as I go. If my boat had breakers I would turn them all off and on, checking for mushy ones,and check the back of the panel to look for bad conections. Tightening screws and changing fuses only at this point, unless I found something bad.<br />If that didn't help I would head for the bilge and folow the fuel line every inch of the boat till I found the air leak. Paying special attention to the intake manifold, hoseclamps on filters, and those nasty brass fittings that love to crack. <br />Does your boat have a mechanical fuel pump, or electric, or both.<br />I like to start at the engine and work my way back to the tank, although it's kind of fun to take the fuel line off the fuel tank side of the first filter in line. I Blow in it and see if I hear bubbles, just in case there is something in the tank. Blowing in a fuel tank is probably unhealthy and dangerous, deffiniatly a no smoking event. Good Luck!
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