Total loss ignition for dead magnet flywheel

[rudderless]

Years ago I purchased a Hurricane 10 off a hydroplane. Had dead magnets. I fabricated a total loss battery ignition for it. I used a small tractor battery to run the coils. I soon found out way too much dwell ..points closed for too long, killing battery too soon. Reworked the point cam to shorten dwell time. Lasted about 10 hours or so before recharging. Could have used less dwell but sold the boat following year so I never did that.

So if one has a motor with dead magnets and low on cash this might be an answer.

[frankr]

Dead magnets are extremely rare on motors made since WWII. But thanks for the tip. Lots of pre-war motors have the problem.

[1946zephyr]

Very good tip, indeed. Thank you kindly

[jw-in-dixie]

Did that on a Mark 20 that needed $100 worth of new Bendix coils. Thought I would just try it, since I had a pair of good coils from a motorcycle. Ran fine off of a rechargeable 12 V battery. Did not check dwell, but, as you say it was probably way too much. Only ran it a few hours but it is a viable solution where it’s a matter of any port in a storm. Motor is still on the shelf, waiting,,, 😉

[RICHARD A. WHITE]

Ok, one question comes to mind.

Who actually carries the proper tools, wiring, and such to make a conversion like this with them while out on the water???
Not knocking this, but that seems like an awful lot of work, while floating around in any body of water…That does not seem like a 30 minute fix…..

http://www.richardsoutboardtools.com
classicomctools@gmail.com

[joesnuffy]

I very much like this subject especially the use of 2 stroke motorcycle ignition coils by jwindixie. And I will explain below.

When I was a kid I was working on my motorcycle and damaged the coil underneath flywheel that powered the ignition coil that mounted underneath the gas tank. I didn’t have a lot of money so I carefully un-rapped the copper wire off the coil under flywheel that powered ignition coil and shortened it about 12 inches where I had damaged it with a tool then re-soldered it to where it went and put it all back together and it worked. If I remember right their were 2 of these type coils underneath the flywheel. I think one powered the head lights and one powered the ignition coil.

What I think I may do is I have a zephyr engine I am going to be working on soon since Kevin (Big Thanks to Kevin 😀 ) has mailed me the parts I needed for carb from Canada. What I may do to this motor is I have an extra magneto for a zephyr I will experiment with it. I will cut off the old bendix ignition coils guts/wiring on the experimental zephyr magneto and re-wind them with insulated copper wire like goes in an electric motor like 1/16 inch in diameter copper wire. I will then use those copper wired coils to power 2 each 2 stroke ignition coils like jwindixie did and that will eliminate the need for a battery.

I think this will be a great way to upgrade/experiment on 1 of my 3 zephyrs and see if I can get it to run more efficiently than the other 2. Someone reading this may know of better coils to use for this type of experiment and I will have to do some research on the wiring of my 1969 Yamaha 60cc lol to see how it was wired and the type of ignition coil used.

Joe

http://www.dansmc.com/magneto1.htm

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[jw-in-dixie]

Richard, I did not mean to imply that the conversion was made while the motor was in use in a emergency.
This was just a "see-if-it-will-work project, on the work bench. I like to tinker.

But, actually it was quick and easy. Not something I would depend on for everyday use. I have a dependable 1961 Merc 200 rat motor for that. Cheers

[rudderless]

quote Richard A. White:

Ok, one question comes to mind.

Who actually carries the proper tools, wiring, and such to make a conversion like this with them while out on the water???
Not knocking this, but that seems like an awful lot of work, while floating around in any body of water…That does not seem like a 30 minute fix…..

I bought the motor knowing the fault. Make the conversion at the shop. Had lotsa fun while dating my wife with that boat.

[RICHARD A. WHITE]

I guess I am not thinking in that context. I was thinking, "put in an add in the Webvertize section for a good flywheel!!!" LOL

http://www.richardsoutboardtools.com
classicomctools@gmail.com

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