HLP: Yamaha XT250 (1982) wiring diagram

I just bought a fairly beat 1982 Yamaha XT250 that has weird electrical
problems. The bike came with a copy of the service manual, but no included
wiring diagram. The problem is that the timing appears to be all or nothing
(TDC or far advanced) and the charging circuit doesn't work at all and the
lighting has been partially removed. I'd build a new wirng harness, if I
knew what was supposed to go where.

If you might have a copy that you could either mail or email me, I'd greatly
appreciate it. If you have any troubleshooting advice, I'd appreciate that,
too.

thanks,
T.W. Day
Little Canada, MN

 

Electrex has an electrical troubleshooting chart that people seem to
like:
http://electrexusa.com/electrosport_fault_finding.html

 

Thanks for the links and advice.