i have a bone stock mxzx 440 and am looking for any clutch setup suggestions. Right now if i punch it from a dead stop it goes right to 8500 and stays there all the way out to full speed. but if i am cruzing at around 20-30 and punch it, it shifts out to 7000 rpm and them will climb to 8500 rpm as i get over 45 mph. Shouldn't it go right to 8500 no matter what speed i am going? I trail ride this sled.