Bad stator, Bad rotor. Related?

chuckt52

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A few days ago, I fired up the bike and noticed I was sitting at about 11.3
Rode it a little, and the voltage slowly dropped. Barely made it home to about 10.7v
Tried to fire it up again, and nada.
Put the battery on charge and got it back to 12.4 holding.
Went outside, checked the stator wires (3 yellow) and found that only 2 had continuity.
Got a new stator and installed it this afternoon.
When looking at the rotor, I found one of the 2 coil wires was not connected (broken solder joint...)
I filed down the surface and did my best to get a good solder joint. Then capped it off with jb weld to help hold the wire through vibration.
I am having a hard time getting a reading on my rotor, so unfortunately thats probably hot garbage also...

I gotta do a little homework on how the system works.
Would the lose wire on the rotor cause the stator to go or are they unrelated?
 
Installed the new stator today.
Plugged in a freshly charged battery, still holding at 12.4v
Fired it up, and test rode it.
The voltage is reading 12v thru all rpms.
Maybe the regulator rectifier fried (it seems to be the stock unit.)
Really wish there was a bench test for the regulator/rectifier.
 
Installed the new stator today.
Plugged in a freshly charged battery, still holding at 12.4v
Fired it up, and test rode it.
The voltage is reading 12v thru all rpms.
Maybe the regulator rectifier fried (it seems to be the stock unit.)
Really wish there was a bench test for the regulator/rectifier.
There isn't a bench test possible with AC power but there are some tests you can run
 
There is a bench test for the regulator/rectifier, but it's not listed in the CB750 manual. Somewhere on this forum there's a link to the Electrical chapter of the CB900/1100 manual and that one has a full procedure, testing on the same part as the CB750's use. I think the only tool needed is an ohmmeter.
 
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