I am suspecting that the different wires go to separate coils on different poles, so that none of the outputs look like the nice sine waves in the books. That way none of the various loads take away from the power in whichever wire provides the charge for the ignition circuit. Magneto systems are, most of them, more complex than we would suspect, especially if they are well designed.

 

Motorcycle LED headlights are not cheap. I would say that they are overpriced as many things are these days.

https://www.summitracing.com/search...owersports-headlights-assemblies?fr=part-type

 

It would be detrimental to wear and tear of the motorcycle's engine, but could you set the idle speed higher to the point of making intensity of the lights somewhat better?

-Pete

 

It would be detrimental to wear and tear of the motorcycle's engine, but could you set the idle speed higher to the point of making intensity of the lights somewhat better?

-Pete

My question in this is, why do you need the light to be bright when your not actually riding? When your off idle and the engine is up to speed of regular riding is the light bright enough? If not then you have a problem with the alternator.

 

If You can provide a Schematic for the Wiring-Harness, then something can be done.
This type of Motorcycle Alternator is regulated by a combination of
the Load-Resistance ( Head-Light ), and the Inductance of the Alternator-Coil-Inductance.
The Inductance causes an increased Coil-Impedance with higher-RPM,
which prevents burning out the Head-Light.

A Zero-Loss Bridge-Rectifier and a Large Capacitor,
plus an appropriately sized Capacitor attached directly to the Lighting-Coil,
will solve the problem.

The Picture is for a 3-Phase version.
.
.
.

 

My question in this is, why do you need the light to be bright when your not actually riding? When your off idle and the engine is up to speed of regular riding is the light bright enough? If not then you have a problem with the alternator.

The motorcycle's taillight is also presumably lighted by the dynamo. If for example he is at a red stoplight, then the bike should have good visibility to traffic behind him. Probably in some cases the bike at a standstill should have good visibility from the front, also.

 

If the motorcycle's headlight is the type that the light bulb can be replaced separately from the housing and lense, then maybe a LED replacement for the light bulb exists? If so, this no doubt would make for a less costly transition to the LED.