*****Any two stroke tunin gurus out there with some input for my dumb ass???****************
Center pot uses a smaller main jet with the OEM exhaust because the center pipe splits into two small pipes for a 4 pipe exhaust. That arrangement for some reason needs a smaller main jet.Triumph and BSA triples tended to run hot on the center pot and that led to the belief that the same scenario occurs on all triples. It doesn't. At idle and small blips of the throttle, you could run it without main jets and it would be fine. The mains do work over much of teh range but hey are not the main event at small throttle openings.Pilot jets should be new stock or maybe one size up and the needles will probably end up on the center clip or maybe one clip lower. All the way raised is too rich for Jemcos plus stock air box and filter. The key to two stroke street bikes is to keep the mid throttle rich enough. They tend to melt at part throttle cruising.