454 mercruiser i/o quit running-1997-

[RICHARD PEARSON]

It sputtered at an itle and quit.<br />No spark when I ground out plug wire or coil wire.<br />When key is on I have 12 volts to both terminals on coil.<br />Tried a new coil. No change ??????<br />Should there be power to the negitive side of the coil??

 

[achris]

Re: 454 mercruiser i/o quit running-1997-

Richard,<br /><br />I have a trouble-shooting flow chart for the Thunderbolt IV. I could e-mail it to you if you want.<br /><br />Chris..........