I just aquired this '95 GL1500SE. The alternator seems to not be charging. When I was taking it off, I noticed that there seems to be an extra condenser on the side. Looks like it is attached between the main terminal and the alternator case. Any idea why there could be a condenser mounted there? The square condenser is also on the alternator.
Also, I took the alternator apart to check the brushes. The brushes looked fine, but the contacts were dirty, so I cleaned them up and put it back together. I thought I could do a bench test with a drill on the main shaft nut but I have no reading between the main terminal (white) and the ground. Is there a trick to bench testing the alternator? On the other forums, people recommend taking to an alternator guy to check. Seems that it should be easy to test. Any ideas would be helpful. Thanks

Also, I took the alternator apart to check the brushes. The brushes looked fine, but the contacts were dirty, so I cleaned them up and put it back together. I thought I could do a bench test with a drill on the main shaft nut but I have no reading between the main terminal (white) and the ground. Is there a trick to bench testing the alternator? On the other forums, people recommend taking to an alternator guy to check. Seems that it should be easy to test. Any ideas would be helpful. Thanks