motorbikerx
XS650 Addict
Thank You.Quick rehash of the type A....
The brown wire is 12v from the ignition switch. It goes to two places:
It goes to the regulator so the regulator knows what the battery voltage is. If it's gonna regulate a charge, it needs to know what the battery's voltage is. The brown wire tells it.
It also goes to the brush. That supplies excitation voltage to the rotor.
So... the brown ties the key, regulator and rotor together. You can run two brown wires from the key to the reg and rotor... or just splice the 3 components together. Makes no nevermind which way you go... as long as you can read 12v at the brush, the reg and the key.... with the key ON.
Black is ground. The black from the regulator goes to the frame... call it earth, call it ground... hell, call it late for dinner. Makes no matter... connect it to the frame. This is the ONLY ground in a type A system. There are NO grounds at the brushes.
Red is the output of the rectifier. This goes straight to the battery (fused of course). This is the charging voltage.
Whites are the 3 AC outputs from the stator. They go to the rectifier.
Green goes from brush to regulator. This is the regulated ground the regulator supplies. We already have 12v at the rotor (brown from key), so when the regulator grounds the green wire, we energize the rotor... causing a charge.
A common troubleshooting method for the type A is to physically ground the green wire at the brush. That will complete the rotor circuit and energize it... generating max charge.
So... try that. Ground the green wire and tell us what happens?
I've got it wired exactly as Jim clearly explains.
Awake now and in the workshop.
Battery showing 12.7Volts
Ground the green brush directly ,no change.
Turn ignition on and ground green brush no change.
Start engine and ground green brush out , no change in volts apart from slight drop of IGN on and eng running.
But the thin wire I'm using to ground gets hot where it's touching the frame.
Also note no slapper effect at central rotor nut ign on or off.
Rotor is a rewound unit and ohms at 5.5 then deduct the .5 of the multimeter and its 5.
What else?...oh yesterday double checked the stator ohms and it checked out ok.
Thanks for staying out of it Jan, I know you're trying to help but to me you're not.
Skulls humour is appreciated but wiring diagrams look like Hebrew to me.
Jim's simple concise directions are exactly what I needed.
But the bikes not charging...
Gotta go out for a few hours soon, but I'll be ready to try the next test , fix, or whatever, when I return.