does not like been thrashed!!!

[kawasakisean]

hmm bike back on the road but if blip up the revs it sticks at 2,500rpm for a few seconds then settles back to 1200, if riding hard and fast then shut off down the box to a junction etc bike wants to cut out, sometimes runs rough for a mile or so then fine normal riding, do my carbs need a good clean or is it fuel starvation or the opposite, over flooding up ?

[kawasakisean]

stupid me, assembled things in the dark, kinked fuel pipe, and one of carb manifold clamps loose,airbox seal broken, yey fixed