[Stuuk1]

I dont know too much, but firstly i'd check the voltage before you start it from cold. Then do your ride, switch off, and take voltage before you start, then once it fails, take voltage again.

If its right down then obviously something is draining your battery. Alarm on your bike? Leaving your lights left on? Dont any electrical mods on your bike?

I know you have prob check this stuff already but though i'd try and help..