I recently ordered and installed a fcr 39mm carb on my 06 DRZ. I noticed while installing it that it was different from the fcr MX carb thats in the write up here on thumpertalk. I believe mine to be the non MX version. First off what are the main differences between the two carbs? Second off I started setting my carb up similar to the thumpertalk write up by pulling the pilot air jet completely out of the carb and I'm having issues with idle (unchoked). It dies off. Chocked it runs but at a very high rpm. Was I correct in removing the pilot air jet completely? Also I can't seam to locate any air/fuel adjustment screws. Where are they located and where should I start to dial this carb in? I can only find the idle screw. I'm fairly mechanically inclined however ill also admit my only knowledge of carbs and tuning carbs is from nitro RC cars so this is fairly new to me. Any input is greatly appreciated. My carb kit that I purchased and installed: http://www.motostrano.com/Keihin-39MM-FCR-Carburetor-Kit-Suzuki-DRZ400-p/016-864.htm?gclid=CKuw6r-ytrkCFY1FMgodyk8AKw Thumpertalk write up I started following: http://www.thumpertalk.com/topic/562280-fcr-39mx-install-using-the-tt-kit/ I'll try posting pictures of my bike/carb later today.