i have a 2000 yz426f. It runs hot after a min or so of just idleing to warm it up. I still have the stock jets and carb settings. But my silencer isnt packed and is cut 3 1/2 inches shorter. My cooling system is fine , like water pump and radiators work great. So does anyone have any suggestions on a good main and piolt jet or all around carb settings? Already tried repacking the muffler and that didnt help at all. My bike ran hot even before i cut the muffler and im running 93 octane all the time.