Hi everyone. The battery seems to be holding a charge very well and is starting 1st time every time. Also, as dumb as it sounds, I located the problem with the leaking coolant. The most obvious place, the radiator cap. It was slightly open from the last time I tampered with it. I didn't push and twist the cap fully enough, so now I know. Oh well, it's a learning experience with these bikes for me, Very different to my previous Kawasaki Ninja 250r.
Thanks for all your help, it was much appreciated.
P.S Take back what I said about the Yuasa, it's in my good book now, but for how long.
Cheers.