Thu Mar 16, 2000 2:57 am by Dusty-Dave
Krusey:
Didn't realise that it was an alternator. Have someone check the battery eliminator to see if the capacitance seems reasonable and that it isn't open or shorted. If you have a ohm meter it should read shorted to ground for a second or so while it charges then open. A digital meter may be too slow to catch the shorted period. then reverse the leads and it should do it again. Not as good as testing with a capacitance meter but catches the majority of bad capacitors.
When you buy the new voltage regulator you might try a different brand. It must be for an alternator sorry I just thought we were talking about a generator.
Also you must leave the lights on all the time. I had a Sportster without battery that started eating regulators after I hotroded the engine. It hadn't given any trouble before. And didn't give any more after I figured out that I had to leave the lights on all the time and took out the switch. It could change rpm so much faster than before and the regulator couldn't keep up. More capacitor would have cured it also.
Dusty