hi i recently took my bike to the garage as it wasnt running rite eg spluttering at high revs and not reving up though the rev range,they cleaned the carb,tryed upjetting it,checked the piston and powervalve all good it was still the same so they removed the airbox snorkal and now no spluttering and will rev rite upto the red line if need be but now its really hard to start ,sucking in to much air in now i supose would down jetting solve this the current jet is a 240,only mode is a big one exhaust.

Does it not start even with the choke on full?

_{it will start on the choke from cold,its when u come to start it after a run,sometimes it will start first kick,othertimes about 10 kicks and it stinks of fuel like its flooding,i have noticed tho if you leave a few seconds b4 u shut the bike off or turn the ignition on and off if its being hard to kick start and leave it,it will start easily?}

I know it might sound a bit obvious but im just checking. You dont use the choke to start it when the bikes warm do you?