I stripped the carb bank early this year and followed to a tee the pdf instructions for the pd46a carbs,at first it looked a daunting task being my first time but read first before anything and as usual i like to understand how things actually work and why.did everything methodically step by step and when it got to no 3 i decided it ws easier to tap out the pin on the throttle stop rather than mess with the throttle actuator! so after thorough cleaning and removing pilot jet using twist/pull i got everything clean.the fuel rail tube seals snapped trying to remove one of them and them each one thereafter.i bought this o-ring set from halfords (i`ll need to take a pic) they worked a treat,perfect fit and also the smaller ones are exact diameter for the mixture screws too!.built the lt back up and refitted the throttle stop in exact place i removed it from.bench synronized using thin metric rule from top of slides and each one appeared to lift the same,got them fitted and bike ran fine,started first time each time but to date if when its ticking over,i try to twist throttle further in the off position,engine will cut out! each slide lifts and closes the same and when the throttle is closed against the throttle stop screw there still appears to be enough movement to shut off engine.ive tried using a microscope to see if the slides are moving further down but cant detect they are yet must be as nothing else could surely move? the throttle actuator does move,yes but not a slide.the carbs have still to be balanced but dont think this could cause this? should the actuator hit a bump stop as it looks like it could if it were to travel far enough ?any ideas from anyone welcome thanks