[Ducati] Misc ponderings about regulators

[mike major]

I have to admit that, even with the faring off, I have been unable to physically locate the regulator on my ST4s although I assume it is located near the battery box.  Anyone out there got a clue?  Might be important to know if it fails a long way from home like my friend's VFR did.
       Also, I found a site, for aftermarket heated clothing, that lists the wattage of various motorcycles along with the wattage used in "normal operation".  According to them an 03 ST4s has a 520 watt alternator, uses about 285W in normal operation and has about 245 watts available for accessories.  I assume normal operation means low beam so running in high beam would still mean that 175 watts is still available for accessory use or being translated into heat by the voltage regulator.  I use an electric vest in the winter, there should be no problem with capacity and in fact I have ridden it a lot in the winter without any sign of the battery running down.  Does this seem right? sure sounds like a lot of wasted energy to me.  The heat generated by a couple of 200 watt bulbs radiating from my "shunt regulator" and contained within the faring does seem a cause for concern.  Later, Mike D. Bike
        

Ted & Vicki Brisbine <brisbine at charter.net> wrote:
  My 907's regulator gave up after 14 years and 32,000 miles. It happened 100 miles from home of course. I had heard good things about the Electrex units so I ordered one. After waiting 3 weeks for it to come I found out they were having trouble getting them shipped over from Taiwan. I found one at regulatorrectifier.com made by Rick's. It was only $99.00 and came right away. Works good so far.
Ted
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