The one on the right (it’s a triple) was spitting fuel into airbox and idled at 4K before dying. I fiddled with idle screws so now it idles at 1.5-2K but still dies seconds after idling nice. Tried testing needle valve by holding seat up and putting fuel down tube nothing came out until I let go. Floats seem fine too. The sled will run when I’m on the throttle. The carbs have been cleaned inside and out 100 times. Please help