Idle not the same

Hi i have a t5 with a malossi kit standard carb i have just put a new fuel pipe on and cleaned the carb now when the scooter is idleing to get it to idle properly i have to turn the idle screw 11 half turns out where as before it use to be 7 half turns any idea why this has changed . I have chequed the fly wheel side oil seal this is ok not chequed gear box oil to see if clutch side seal is ok will have a look tomorrow Thanks Gary[:drink:] [:drink:] [:drink:]