Main jet size for 187cc Malossi cylinder on VESPA LXV 2V 125 4T AC 2006 CARB


Which is the size for the main jet(from NARAKU) when installing " Tuning kit complete sport" from SIP ? The whole kit with 187cc Malossi cylinder, Remus exaust, variator, belt, clutch...on VESPA LXV 2V 125 4T AC 2006 CARB.

Thank you