3.0 mercruiser , no spark (2 Viewers)

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Oct 30, 2007
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Plano texas
Hi, 3.0 Mercruiser has no spark, New auto zone gold 27 battery. Turns over fine, has gas. Starter solenoid has good 12 volts , But no spark at plugs. Coil ? Tach ? Resistance wire ? Thanks, Mike
 
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Coil good, Continuity from coil tower to pos. and neg. Purple solid and purple with yellow stripe getting very hot that are attached to pos. side of coil. Still looking....If I'm in this far thinking about going ahead and installing Delco Voyager est system. Has anyone done this and do you like it? Thanks, Mike
 
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That motor uses a ground to kill, in addition to a positive to provide coil ignition. Check your kill switch. Unplug both sides of it and try again. First test of any no fire boat situation is kill switch elimination test. Let me know how it goes.
 

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