I posted last week about my raptor popping really bad on decel, shooting flames and even sometimes dying. I changed the header exhaust gaskets this past weekend thinking I had an air leak. I rode it and it seemed fine after I changed the gaskets. Well I rode it a little more today and really let it wind out on top end and on decel it was popping and shooting flames and almost died. This is a recent problem, I have not made any jetting changes. It runs great and does not bog or pop or act strange at all until I let off the throttle after a long wide open run. The carbs are secured tightly in the boots. My pilots are what Sparks recommends with their pipe (27.5), if anything I am too rich on the pilots, this is not a lean decel pop. Could out of adjustment valves cause this? Is it possible to get the header pipes tight and they still not be pressed up against the header gaskets? I am pulling my hair out. Any suggestions? Thanks.