You might have success with Niemiec Marine 508-997-1805. Also Yanmar has several dealers in the US that supply older YSE parts. If you do try Niemiec talk to Jim Burden he has helped me locate parts for YSE12. There are several parts on older YSE 12's that are no longer available. Jim has good knowledge of those engines. You could download the manual. Fortunately one came with my boat they are pretty much indispensible in providing part numbers. I believe Yanmar has downloadable copies for the YSE 8 & 12 series.
