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TK in LA · 07-13-2010, 09:52 AM

Not sure about the newer ones but the older ones have a spinning disk at the bottom of the trumpet. If yours has one check to be sure its free. Also check to be sure that the adapter to the manifold has a large enough hole. They like lots of vacuum!
Good luck!
Tom

07-13-2010, 09:52 AM	#2
TK in LA Senior Member Join Date: May 2010 Location: La Verne, Ca. Posts: 885	Re: Wolf Whistle Not sure about the newer ones but the older ones have a spinning disk at the bottom of the trumpet. If yours has one check to be sure its free. Also check to be sure that the adapter to the manifold has a large enough hole. They like lots of vacuum! Good luck! Tom Last edited by TK in LA; 07-13-2010 at 12:21 PM.