ITS HARD TO EXPLAIN BUT AT STEADY 3/4 THROTTLE ABOUT 6000 RPM MY SLED WILL HICK-UP, PAUSE OR HESITATE FOR A MILI SECOND. IT DOES IT MORE UNDER A LOAD (UP A HILL) THAN A FLAT SURFACE. DOES ANYBODY NOTICE THIS? WHAT DO YOU THINK IT IS? THANKS FOR THE HELP. PS TURNED MY FUEL SCREWS IN 1/2 TURN AND MY AIR SCREWS OUT 1/2 TURN IT HELPED A TON WITH LOW END BOG