i have a 04 triumph america. I put on a set of bomber exhaust, k&n replacement filter with the bellmouth. i'm now running 155 main jets, 45 pilot jets, stock needles with 2 shims, and 3.5 turns on the air screw and the plugs are still running white. for kicks i put the stock air filter back in with the snorkle to see if cutting the air intake would make it richen up but no change. i now switched back to the k&n set up. before i changed the exhaust and filter the plugs were a pretty tan color so i don't think i have an air leak. jetted many a bike put this ones stumped me. any help
