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Boat will not start.

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Old 07-07-2007, 08:48 PM
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Default Boat will not start.

Ok I replaced the plug wires, the , the starter, the ignition switch, the distributer cap, the rotor and sensor and the dam thing will not start, The battery was replaced as well, what could it be? The engine is a 454 420 merc. do not know what to do. Any thoughts?
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Old 07-07-2007, 09:17 PM
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Kill switch? Shifters in netrual?
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Old 07-07-2007, 09:28 PM
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Do you have fuel squirting from the squirters when you push down on the accelerator pumps? Do you have any spark at the wires? 12 volts at the purple wires on the coil with the key on?

Let us know.

John
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Old 07-07-2007, 09:28 PM
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Quote:
Originally Posted by f311fr1 View Post
Kill switch? Shifters in netrual?

yep . . . did it once myself . . . spent every bit of an entire day replacing stuff only to see a life vest laying on the deck with a lanyard dangling from it . . . we had just thrown in the towel and started drinking when we saw it . several hundred dollars were spent along with several trips to BoatUS
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Old 07-07-2007, 10:06 PM
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Neutral safety switch???
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Old 07-07-2007, 10:10 PM
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neutral safety switch will disable the starter so it will not crank over at all. kill switch disables the ignition. if its a fuel delivery problem it may still "try" and start. might act like it wants to catch but will sputter and quit. if its an ignition or kill switch it will crank without change.
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Old 07-07-2007, 10:29 PM
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Default Fuel delivery

It acts like it wants to start but dose not.
What is the problem with fuel delivery?
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Old 07-07-2007, 11:16 PM
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fuel pump or plugged filter or line. check the filter/water seperator. make sure all lines are un obstructed. should be able to blow through back into the tank.
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Old 07-11-2007, 11:04 PM
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Assuming you've already made sure you have spark.
If it's carburated prime it with a splash of gas down the carb. If it starts and dies you know it's a fuel delivery problem. If it's injected you need a pressure gage.
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Old 07-12-2007, 07:50 AM
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not an alpha, is it? if so, there's a stupid little ignition interrupt switch for when you shift that can go bad and screw you. if it's acting like it wants to start, ie firing a few times and dying, that's probably not it.
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