Re: AIR LOCK!
I've always raised the front up. It only makes sence that the air would rise up right? I just take it out and park it on a snow bank and let it run with the cap off. I'm not sure you even need to take the cap off because of the over flow tube, but do it anyway. If the book says to raise the back, do that too. Let it sit at both positions for about 5 min. The air could be in a funny spot, and might need a little bit of movement to get it out. Are you able to drive it? take it around a bumpy trail a few times.... (don't over heat your engine) but hit a few jumps and it might free it up. If that doesn't work, then it might be something other then an air lock.
Hope this helps, [img]/wwwthreads_images/icons/smile.gif[/img]