Motorrad Elektrik (check the links page) makes a 400 watt "Omega" alternator/ rotor/ voltage regulator/ diode conversion that I have heard good reports of. I think it runs about $500-600 USD. The only other option I know of is to buy a newer bike with a 600+watt alternator! I guess 280 watts seemed like a lot back in the 70's.... BTW, it is not a bad idea to run above 4000rpm anyway, the airhead perfers a bit of RPM.
Good luck!
[This message has been edited by Timo (edited 08 January 2005).]
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