71 R50/5 Well this just sucks! Charging

[jdvorchak]

As far as I know it is the original regulator. And no I've not heard about shorting the blue wires. I know where the regulator is located and the multi pin connector. Frankly it's been too hot out for me to get to the garage and do any more trouble shooting. So I have to wait a week for the heat wave to break or work at night which isn't all that bad if it drops below 90 deg F.

[Kurt in S.A.]

Snowbum's page for troubleshooting the alternator discusses which of the three legs of the regulator you should jumper across.

http://bmwmotorcycletech.info/trbleshootALT.htm

Kurt in S.A.

[jimmyg]

"The mechanical regulators usually fail by slowly deteriorating the output voltage. A failure to charge, in which the regulator is suspected, can be PROVEN, on BOTH the mechanical and electronics regulators, by bypassing the regulator. This is done with a jumper wire with male spades at each end. Remove the regulator plug; insert the jumper into the opposing (NOT BROWN WIRE!!!) plug connections. If the system now charges, replace the VR. Good sources for voltage regulators (get the adjustable type!!): http://www.euromotoelectrics.com http://www.rockypointcycle.com/"