I have read numerous articles on uncorking the beast and bought all the parts for it and taken the carb out and substituted all the items. My questions are as follows: 1. I have read that the clip should go on both the 3rd position/ 4th position. When looking at the jetting tables, I assume this is to do with my position above sea level and how rich i want the mixture? I have set it to position 4 with all the required new parts. 2. When putting the carb back together, One of the articles said to use some teflon/oil on the throttle valve, is this neccessary? Do you just buy this teflon as a liquid and 'paint' it onto the valve as you would oil? I would have just cleaned it up with a lint free cloth and put it back in - but now I am not sure 3. When putting the carb back together is it wise to use some sort of sealant on the faces, or will new rubbers do the trick?  I have an '02 XR650R Any help greatly appreciated. ice.