I just bought a 04 wr450 and love it! However the battery is completely stuffed and won't even charge so i’ve been riding around with no battery and haven’t got onto getting a new one because the bike has been so easy to kick start! Hot, cold or warm it has never needed more than a few kicks. The thing is, during a ride i left the bike running while i got off to open a gate and it stalled. After bruising the arch of my foot from kicking the thing so much i wheeled it home and wired on another bike's battery. Sure enough it fired up easy with e-start and strangely with the other battery still connected it kick started just as easily as it ever has. Disconnected the battery and it showed no sign of kick starting. Any ideas what might have changed? Why do i now need a battery connected to kick start her?