1990 J70TLESB - 70 hp

[joem01]

To replace coil or power pack, that is the question?

1. number one spark plug receiving good spark via spark tester.

2. rang out (3) coil's w/ meter - each well grounded & +/- 240 ohms
each, primary vs. secondary.

3. removed power pack, sand papered terminals, re-installed - now spark plug's
one and three have good spark via tester.

Does this sound like a bad power pack, coil or connection?

[Solarman]

You might check neutral/ shift switch, they have been known to cut power to some plugs if the switch goes bad? Safe mode type thing, I guess.

Good luck, post back if find anything.