Re: KG7 Coils

[billw]

quote Slim60:

The bottom cylinder only has intermittent spark. It ran good the first time in the tank. I mounted it on the boat. It rained the next morning and that afternoon it started on one cylinder but the second cylinder kicked in at 3/4 throttle. Then I began rechecking ignition.

How are you checking the spark? Are you using an open gap tester? I find that Bendix systems can reliably jump 3/16" and a really ideal one can sometimes make a 1/4". (Bendix ignition is kind of a joke. I may have had a bunch of weak magnetic rotors; but this has been my personal experience with many of them.) If you’re using inline, neon checkers, be advised that if the cylinder fouls out, like from water drops from a bad crank seal or over-abundance of fuel, the neons will go dim, as if they have no spark. This is because the voltage to fire a fouled plug is a lot less than to fire a normal one, like 2000 vs. 7000 and up.

People will gasp; but sometimes out of desperation, I have closed the plug gap to .015" and the result is a fine-running engine.

Long live American manufacturing!