Loosen up all the hose clamps, center everything up, then one by one, tighten the hose clamps till they start to snug down. THEN STOP TIGHTENING. Do this to all the clamps, one after the other. Just snugged, not tightened. Then, go over all the clamps again, tightening each 1/4 to I/2 of a turn. Go down the road a few miles till it's warmed up, pull over and do a carb wiggle test. If loose, go another 1/4 turn. If you tighten too much, it's like squeezing an oily ball bearing, it's going to pop out. Make sure your surfaces are clean, and let the natural friction of the rubber fittings work for you.