Im always a day late. I was going to ask you what kind of battery it was. Cant tell you how many bikes Ive serviced with the same problem. Wont start, but the battery is brand new. First thing I check is the battery. Id say 90% of the time its a crapper. The other 10% is stupid shit like loose terminals, blown fuses, or bad grounds. Yes Yuasa's are pricey, but take care of them and they'll last a long time.
Im not sure what my battery is made out of, but it is the ORIGINAL..which would make it 11 years old. Been on a tender since day 1. For the past 3 years, Ive said I was going to replace it. Now, I just want to see how long it will go.