So I've recently purchased my third cns carb, ( I love them but the clamps seem to like to break) but I cant get it to idle right. Has a number 72 jet. When I let off the throttle the idle is way up high around 3500 rpm but if I let it sit over 10 seconds it will drop down and very nicely idle at 1900-2300. If I try to tune it down while its at 3500 rpm it just dies. If I'm riding when I stop (I usually pull the clutch and ease to a stop) I have to let the clutch out and pull it back in while I'm almost stopped to slow down the engine. could you guys help me with this?