I just got a 1927 Elto Lightwin Rudder Twin and it had issues with Timer and carburetor, had a broken poppet valve and valve guide was missing. I found where I can buy Timer strap so looked on Ebay for carb. and I found one that had a poppet valve spring missing and it was $10 and had two days to go and no one else bid. How could I be so lucky, arrived today swapped a few parts now ready to go.