Try your timing light on all the wires & the coil wire or on your car or truck to verify that it is working. If it is working, but won't pick up off the #1 wire on the boat, then it's probably because the spark is in fact too weak.
Blast your plugs real good with some starting fluid or brake clean to clean them up & blow them out with compressed air to dry em good or let em set & air dry real good & they'll probably be ok to use when you get your new cap & stuff. Jim.
Blast your plugs real good with some starting fluid or brake clean to clean them up & blow them out with compressed air to dry em good or let em set & air dry real good & they'll probably be ok to use when you get your new cap & stuff. Jim.