One last charging question (I hope)

[OctoberNotice]

I have a 1980 special, replaced rotor, reads at 5.7ohms.
New alternator brushes, and the timing is spot on.

When idling, the battery reads 11.9 volts, and at 3~4k rpms it reads 12.3 or so.
What could be my problem now?

 

[retiredgentleman]

You have no charging at all.

http://www.xs650.com/forum/showthread.php?t=2736

Read the electrical part...................especially Curly's troubleshooting charging guide.

 

[OctoberNotice]

before the brushes and rotor though it would run for five minutes, now it'll maintain running for 20 some miles, but not recharging.

 

[OctoberNotice]

Oh I'm sorry, I forgot a very important note, why I'm posting instead of searching old topics.

When I replaced the rotor and brushes I took a reading and was getting 13~14volts, so it was charging well. That was several weeks ago, why would the system suddenly stop working? I rechecked the rotor and still good ohms

 

[retiredgentleman]

For 20 miles, you are just running off the battery. Follow the steps in Curly's guide. You need to find out if the new rotor is producing a strong magnetic field (slap test)

 

[Dennis]

why did you replace to rotor in the first place

 

[OctoberNotice]

the old rotor was only reading 1 ohm

 

[apt3customs]

I still have your old rotor if you need to try it again, also a stator.