Anybody ever replace the winding in a generator rotor?

I have a 1980 CB750C with an open-circuit in the generator rotor.
Before I go plunk down $160 for a rebuilt one, I was wondering if it's at
all feasable to rebuild one myself.
(I've got two, so even if I tear one up, I still have one for the
core-charge if I buy one.)
It looks like the hardest part would be getting it apart. I found the 4
screws under the front surface, but I guess there's more holding it together
than that.
I hear it's supposed to end up around 4 Ohms. If it's 18ga. wire, that'd be
about 700ft, which I'm guessing would be about 1000 turns, which could be
sealed with epoxy.
Thoughts anybody (yeah, I'm a cheapskate).

 

An eternally-broke acquaintance tried rewinding his Suzuki stator with
transformer wire he bought from Radio Shack.

Transformer wire is insulated with a reddish brown enamel that will
not survive immersion in hot engine oil.

Suzuki's supplier (Denso? Nippon Kogyo?) used some kind of wire that
was insulated with a green plastic when winding
their OEM stators...

 

Would a stator typically be immersed in hot engine oil? This one's outside
the seals & is dry.

An eternally-broke acquaintance tried rewinding his Suzuki stator with
transformer wire he bought from Radio Shack.

Transformer wire is insulated with a reddish brown enamel that will
not survive immersion in hot engine oil.

Suzuki's supplier (Denso? Nippon Kogyo?) used some kind of wire that
was insulated with a green plastic when winding
their OEM stators...

 

I've known people who wound their own coils for building electric guitars,
so anything's possible...

 

Oh well - I found a place that rebuilds them (if you send them a core first)
for $79.
Never did get the darned thing apart. I don't know if it requires a solvent
or special puller or both.
But for that price to get one rebuilt, it no longer seems worth trying it
myself.