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Joined: Sun Apr 04, 2010 10:28 am
Location: West Lorne, On
Motorcycle: 1982 CL1100A Apencade


Postby barcar » Wed Jun 01, 2011 9:00 pm

I understand that '82' wings have a "stater" insted of an alternator. Can one be installed?

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Re: Restoring

Postby WingAdmin » Wed Jun 01, 2011 10:51 pm

Calling one thing a "stator" and another an "alternator" is actually technically inaccurate.

All GL1000, GL1100 and GL1200's have what we call stators. A stator is basically a stationary coil of wire. On the GL1000, GL1100 and GL1200, the engine rotates a magnet (the rotor) inside this stationary coil (actually three coils arranged in a circle) producing three-phase AC current. The amount of power generated is dependent on the speed of the engine. Any excess power generated and not required by the bike's electrical system is shunted to ground and wasted as heat by the regulator/rectifier. It's not the most efficient method of generating power, but it is simple, small and has less moving parts.

An alternator actually has a stator inside it as well (remember, a stator is just a stationary coil). It replaces the spinning magnets with a spinning coil - still called the rotor. The alternator has regulator circuitry that regulates how much power (DC current) is put into the rotor. This power turns the coil in the rotor into a magnet - the amount of magnetism present is dependent on the amount of current. This way, the regulator inside the alternator can adjust how much power the alternator is generating regardless of how fast the rotor is spinning. This means (within reason) it can produce the same amount of power at 1,000 rpm as it does at 8,000 rpm. There is no wasted power, because it only produces what the bike needs.

As for replacing the "stator" in the GL1000-GL1200 with an alternator - it can be done, and there is a well-known kit for the GL1200 known as the "Poorboy" conversion.

Some people have also adapted the Poorboy kit for GL1000's and GL1100's - you can see a GL1000 conversion here.

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