Up for sale is a new rubber engine crankcase breather that will fit Yamaha YDS3 and YM1 models. The Yamaha part number is 156-15371-00. These are made exactly like the original in EPDM rubber and a proper metal die not like some the poor quality repro parts on the market. Shipping is $9 airmail to the US and Australia, Europe is $8. Check out my other auctions for other hard to find Yamaha parts.