kawasaki zxr750 j2 - idles beautifully, all day if need be, but as soon as I accelerate the engine dies (lack of fuel?). I´ve checked the fuel pump, it seems OK, but not a great deal of pressure (don´t know how much it should have), I´ve seen petrol coming through the main jets, so I don´t think they are blocked. The only other thing I´ve noticed is that the ´sliders´ in the carbs are very very jerky when the throttle is used (is that a clue). Any help gratefully received as I´ve only had the bike a month or so and love riding the thing (rather than fixing it)