John Maloney

hi i have the same problem with my piaggio zip 50 2t it is fine up till about half trottle then just bogs down and dies i have rebuild the carb changed the air filters and the secounday air filters and reset the carb ideal screw and the air screw but it is still the same i am at a lose end with this bike i was wondering if u have any advice to get her back to her full health