I just purchased a new 2002 650r and I uncorked it, removed the smog, rejetted it to accommodate the free flowing baffle with the stock exhaust. It has a 175 main, 75 pilot, the needle is a B53E and it's in the 3rd (middle) position. My problem is that it doesn't run well at 3/4 throttle and above (in any gear). The bike starts missing and feels like it's not getting any fuel. I also have 2000 650r with the exact same jetting and I swapped the carbs and it ran fine with the old carb. If it makes a difference, I am using a stock air filter on the bike. I would appreciate any help or advice.