I bought the 5 year Hose and Rubber Component list from Lockwood Aviation which included the fuel pump, float needles, diaphragm, Carburetor Overhaul Kit, etc. I think the seat might be at fault. Lockwood thought so too, with no guarantee that they could fix it. Rather than loose more time, I'm going to bite the bullet with new carbs. Toys that don't work are kind of useless. Thanks for your comment.
Bob