[quote="chevyfireball"]Could be your rims are spinning and the tyres ain't. You use rim screws? Make sure you have plenty of water on them. Give it a flick in the water box first.[/ quote] i marked the tires with a white dot and they are not moving. i have been pulling out out the water box to where it's just about dry. i just started doing it that way. if it's the water that causes them to smoke, that would explain