Yep. Me too. Just burned the last of my five gallon jug of natural oil mix and switched to Amsoil synthetic 40:1 (blue stuff). Ran the bike until the reserve showed signs of no gas, tipped the bike over for a spell to drain out some from the carb ant that was it. I noticed improved throttle response, and it likes to rev up quicker.
i likey ;)
I asked my buddies that race pro motocross and snow cross about problems switching back and forth. They looked at me like I had two heads! :think: There should be no problem between the two.
Sometimes coincidences can turn into poor theories.