ok so I have a 1993 cbr f2
if I let it sit and idel it will kit the battery
its ok as long as I am drivein till to day
it was hot out so when the fan kicked in it killed battery
any pointers would be great thank you

 

Sounds like the r/r is gone. Lack of charging at low revs. Should be getting about 13.8 to 14 volts to the battery when running.