So i looked at just about every post i could find on here about the conversion, and i know they are pretty much plug and go besides stretching the boot a little. If i remember correctly the 02-09 will work, but the 05+ are slightly better.. it is very slim pickings right now from what i can find of the YZ450f carbs, none of them have any of the cables included and are $200+.. i just replaced the intake and exhaust cam with the HotCams for the auto decompression so i have that lever for the hot start, just need the cables and carb...my buddy said the honda carbs are exactly the same(thats what his dealer said) and i just wanted to know if i could include Honda carbs in my search.. thanks!! sat for a winter, got it for $600. had a local shop go through it and rebuilt the carb and cleaned it ultrasonically and just no good. After lengthy troubleshooting, cleaning the carbs again, checking valves again, they threw a carb they had on it and it fires right up and runs great. (have a post in the classifieds) THANKS FOR ALL THE INFO GRAYRACER513, havent met you yet but i already respect you for the time you put in to help strangers!