On a 2004 FG649 -- Is there some sort of trick to removing the air filter? The shop guide implies that after removing the cover from the bottom of the air box, the filter should just drop out easily, but mine is really stuck up in there. I've tried twisting and pulling pretty aggressively, but can't get it to budge at all. In looking at photos of the filter online, it looks like there's a rubber lip on the top of the filter that fits around a plastic tube at the top/inside of the air box, so I'm thinking maybe that rubber has fused to the plastic over time. Anyone ever run into this situation? I has hoping to just blow out the filter and reinstall, as per the shop guide, but am now thinking I may have to destroy this one just to get it out.