fenianmoto
XS650 Member
Hi, I'm new to the forum, longtime rider & wrencher, mostly Honda fours & brit twins.
So I've been working on a friends newly aquired XS, it's a 1980 w/ CDI. She's having charging problems, so I started digging around, testing, & researching. Going by the shop manual's method for this bike, it mentions pulling the headlight fuse for the test. I did that, and it's getting a good 14.5 - 14.8 volts above 2000 rpm's. With the fuse in, it struggles to hit low 13's at that same point. I looked at Curly's charging test on this forum as well, and when I cleaned & then measured the slip rings on the rotor, they measured just over 2.
The brushes are new, every contact has been cleaned, grounds checked etc. Ordered a new rotor, but I'm still wondering why the initial system check with the fuse pulled seemed good. Any other feedback would be appreciated. Thanks!!!
So I've been working on a friends newly aquired XS, it's a 1980 w/ CDI. She's having charging problems, so I started digging around, testing, & researching. Going by the shop manual's method for this bike, it mentions pulling the headlight fuse for the test. I did that, and it's getting a good 14.5 - 14.8 volts above 2000 rpm's. With the fuse in, it struggles to hit low 13's at that same point. I looked at Curly's charging test on this forum as well, and when I cleaned & then measured the slip rings on the rotor, they measured just over 2.
The brushes are new, every contact has been cleaned, grounds checked etc. Ordered a new rotor, but I'm still wondering why the initial system check with the fuse pulled seemed good. Any other feedback would be appreciated. Thanks!!!