I have been searching alot and can't find my answer. I have a 05' standard (carb) and a stage 1 kit. I just put on a set of pipes that go 1.5 to 2 to 2.5 out. Dual pipes. The bike on deceleration at high rpms backfires like a mother f'er. I rejetted with a 195 main and checked exhaust and still backfires. I rode it last night and when it would backfire flames would only come out of the rear pipe. I will try a 200 main and check the exhaust on the rear pipe again. Any other suggestions?