Re: Flywheel Magnetizing

[simoner1]

quote NJ-boatbuilder57:

In this application it isn’t about how well they attract steel objects (like your screwdriver tip), but about how well they disrupt the coil’s field. If the spark is good, the magnets are good (or “good enough”).

And, as stated, magnets hold their charge a VERY long time. About the only things that can really mess them up is shock or heat. If the flywheel wasn’t dropped or torched, it is more than likely just fine.

Of course, if your spark is week and you know the other components are fine, then you may need to re-mag.

Thanks for the tips. From what I have read about magneto magnets is that most tips that are provided regarding magnet strength deal with "if a hack saw blade is supported by the magnets field then the magnet is good". That sort of qualitative stuff. Since I am not the first owner of these outboards I can’t vouche for how they were treated over the past 75 years or so. Sounds like their is no quantitative way to know. You either get "sufficient spark" while rotating or you get something in between.