One year later, my charging problems are bad enough that I did a bit of googling and here I am again. Thanks once again! Time to invest in a PMA system I guess.

Thanks a lot. I especially liked the 9volt battery trick.

Brilliant

no you can test the rotor by removing the brush assembly on the stator and putting your multimeter prods through the brush holes but its a real pita to do without shorting the prods somewhere. Better to remove your cover and stator completely then you can also clean the copper lands on the rotor and check your stator wiring hasn't got a short or break somewhere out of sight.

Youre the best, thanks

Good job!

Great vid, thanks!

Hi bro! When i put stared my bike, the regulator rectifier its so hot and the battery not charge... What do you think about this? Can you help me? Thanks!

Thank you for sharing your knowledge. I am having charging problems with my 1981 XJ650 Maxim and still haven't solved the problem. The stator phases all check out at .5 ohms, brushes are new, regulator rectifier is new. Beginning to suspect the rotoe is the culprit. can they test good at rest and fail when spinning, perhaps from a break in a winding that opens up under the influence of centrifugal force?

hi is it necessary to remove the rotor to test it?