Bad luck Lee!!
This isnt the weather for pushing bike to the nearest petrol station!!
Ive found that since taking Cat off I've reduced the distance till fuel light down to 82 / 85 ish. Im sure it was in 90's before.
Haven't run it dry yet tho, so cant comment on how far it goes after light!!
Have you fitted your new exhaust yet? Has that made the difference?
On another note, since resolving problems with exhaust leaks on connections to the tho-pipes Ive got a cracking backfire on overrun now! Nearly blew the tiles off the inside of Mersey Tunnel on Sunday!!

G