seem to have this niggle , as the weather has warmed up and the roads are dry been able to get the bike over more on the twistys, one bend on my way to work is quite sharp swooping corner and is great fun , with the bike quite low round the bend as i come out and start to stand the bike up it develops a stutter , almost a fuel starve thing and only briefly, anyone had anything like this or know what might cause it , i know theres a million varibles , fuel lines not kinked, good vac, over half a tank of fuel etc, dont think its poo in the carbs , could it be a float or needle valve thing , scratchin me edd on this one

Might be stating the obvious here, but how much fuel have you got in your tank and is the tap on reserve (i.e. the lower fuel pick-up)?

no the tank was two thirds full, tap was set to on

Presuming the floats are set right the carbs are balanced and clean then you should make sure your pilot screws is the right amount of turns out as this would affect your pickup in the 1/3 throttle range as that's what you would use in the slow full lean corners. Hope this make sense

You dont' have water in the carbs do you? Drain them out into a cup and see if you can see anythign floating in them