2001 Yamaha Roadstar 1600 ignition coil specs

SOURCE: wire connector between stator & voltage reg/rectifier burnt

your voltage/reg. can be tested in a couple different ways check ground res. check res. then revs. bias on diodes you have ac in dc out it sounds like you may have a diode gone bad allowing ac curent to flow causing the wires to get hot

SOURCE: 2001 yamaha r6 keeps going dead! Stator,regulator or something?

you need to check for a short if its not that then it could be your altinator or a regulator box

SOURCE: the wires going to the voltage regulator keep burning up.

Common problem with poor quality parts, the regulator is the problem, the generator is working other wise you would not have fried the wiring, you answered your own question. someone telling porkies to get more money from unsuspecting client?
The regulator controls the voltage not the generator, the generator only supplys the voltage it cannot overcharge unless the regulator is not working properly, simple!

SOURCE: my battery wont keep a charge

did you check the rectifier circuit? thats the only thing left in the charging system circuit....you can check this buy using a voltmeter, first gain access to battery.... ground the black meter lead to a good frame ground (make sure bare metal surface, not painted), and touch the red lead to the positive terminal on the battery..with the engine at idle, you'll probably see about 12.5v or >...now increase to 4000rpm and watch to see the voltage rise to approx. 13.5v to 14v and then while holding it at this rpm you should see the voltage being rectified down to about 13v, release throttle now, this is normal operation rectifier is working. If the battery still wont hold a charge then the negative battery cable is probably shorting out on the frame somewhere and draining the battery. You can try to see if this is shorting out by driving the bike around (if you can), for at least 15 minutes above 4000rpm then take a voltage reading real quick... it'll probably be around 12.6 or> ..13v is excellent. now disconnect the negative cable.. tie it off so it wont touch anything, and leave over night next day it should still read about 12.6v. Hope you find the trouble. Can you let me know if this helped you a lot.
thanks

SOURCE: 1997 Yamaha Kodiak 400, hard to start, once you

I would follow the fuel line all the way check the filter it should be inline and check the pump as well i would say its one of them two.