Has anyone attempted this?

[restornator]

On the low tension magnetos with 1 traditional coil under the flywheel supplying power for 2 external ignition coils, what would happen if a second coil mounted on the armatureis rigged to supply power to the battery? has it been tried? How many amps could a traditional ignition coil output?

 

[Dhadley]

Re: Has anyone attempted this?

What is it you're trying to accomplish? A standard outboard magneto system will be enough to run most outboards at a higher rpm than you'll ever see.

 

[F_R]

Re: Has anyone attempted this?

On the low tension magnetos with 1 traditional coil under the flywheel supplying power for 2 external ignition coils, what would happen if a second coil mounted on the armatureis rigged to supply power to the battery? has it been tried? How many amps could a traditional ignition coil output?

Has it been tried??? Certainly. That's how they do it at the factory, but with a special alternator coil, not the igniton driver kind. However it requires a different flywheel to do any good. With the alternator coil and correct flywheel, it would put out a max of about 5 amps

 

[boobie]

Re: Has anyone attempted this?

FR, just curious, what is different about the flywheels?

 

[Silvertip]

Re: Has anyone attempted this?

I think you need to get some terminology cleared up so people can make sense of this. You do not power anything other than a spark plug with an ignition coil. The stator windings under the flywheel provide the power for the IGNITION system consisting of an ignition control unit and an ignition coil for for each cylinder. IF and only IF the engine is fitted with a charging system does another set of charging coils appear for that purpose. There is no such thing as "armaturies" but in a conventional generator or electric motor there is an "armature". On an outboard the only armature is in the starter or trim motor. Some small engines had charging systems that could be added as an option where one wasn't originally included. Most electric start outboards already have a charging system. Now then, what is it you are actually trying to accomplish?

 

[F_R]

Re: Has anyone attempted this?

FR, just curious, what is different about the flywheels?

Perhaps my reply was a bit hasty. The OP didn't specify what he is working on. If it takes a different flywheel, it is because it has more magnets in it. Not sure if that applies in this case.

Silvertip, concerning the armature: You are correct in what you are thinking, however the plate under the flywheel that all the goodies is attached to is called an "armature plate".

 

[seahorse5]

Re: Has anyone attempted this?

On the low tension magnetos with 1 traditional coil under the flywheel supplying power for 2 external ignition coils, what would happen if a second coil mounted on the armatureis rigged to supply power to the battery? has it been tried? How many amps could a traditional ignition coil output?

That type of ignition system is called energy transfer ( ET ) and was used on some of the smaller motors from 1974 thru '76. Most had kits available to add battery charging capabilities. What specific engine and year are you interested in?