I'm on a 2001 with more or less most of the Gordon Mods - snorkel removed, iridium plug, Supertrap IDS2 Quite cor exhaust, Uni filter. I stepped up to a 125 main (122 stock in CA) and still the bike appears to run lean. Plug is just a little white and I get popping when rolling off the throttle. I have gone through the exaughst and found no leaks. The slow jet is still stock and I have adjusted the mixture. Bike more or less runs flawless, but I want to get rid of the popping. Where to go on the jets? Ride mostly at about 2,000' in Southern California. Thanks for the input!! TT rocks.