Re: no spark
A peak reading volt meter would be nice to have. Maybe we can eliminate a couple things for ya. '77 70hp....<br /><br />Lost spark to all plugs.....well...the timer base has three little coils in it to fire the individual cylinders. I could see one going out but all three at the same time....long shot.<br /><br />Three ignition coils....same here.<br /><br />That leaves the charge coil, under the flywheel in the stator and the power pack.<br /><br />The output of the charge coil, if I remember, should be in the 150 to 200v range. If you have this and still no spark, the pack is at fault.<br /><br />FYI...the output of the sensor coils should read between 1 and 5v's.<br /><br />If ya' don't have one, a service manual would be a big help. You can get a generic here at Iboats or contact Ken Cook Co. for a reprint of the original.<br /><br />Hope we've help a little and keep us posted.
