A little while back, my 426 was fouling plugs pretty bad. So I took the carb apart and checked all the jets and cleaned them. Also I made sure what size jets they were. They were all stock. I read through the manual and it said what the effects of moving the little clip were. So I moved it up one on the little ribs. It's been running great ever since with almost no dying bike problems. It pops a little bit on decel, just a couple, and I have terrible muffler packing. All I'm wondering is what exactly that movement of the clip did beside lean it out a little. Also, it's starting to get cold here in Texas. It's running good at 80-100 degrees. This is my first cold season and I'm just wondering what to expect for the 40-65 degree temperatures. Any advice and information is greatly appreciated.