Ok, I need the expert help from the Skidoo faithful. You guys ahve taught me ring changes, jetting, gear changes, studding, and now I have one more issue. I have a 99 Mach Z Stock sled. How do I get to the gas tank to pull the pickup out and change the filter. It appears there is a trick to finding the bolts to undo to get at it. My 99 service manual has no instructions at all. It starts with you already at the tank! Thats not much help. Ok guys, I'm just waiting to learn. Thanks for the help.