I have my busa for 6 months.Bought it new '03...yesterday and without a warning my battery died.....6 month period seems kinda small to me for a battery to die..
depends....[adult diaper] anyway , back to the topic .
-did the batt hava a lot of down time
-was it exposed to high temp fluctuations
- lots of low speed ,high drag riding
- could have been toast right out of the box[it happens]
I would do some tests , make sure its not the stator,the reg,the rec. etc tec
6 mo is , on average , A SHORT LIFE FOR YER batt .
Have a good 1.....RSD.