Nope, no more YS 61 2 strokes, and no more OS rear exhaust 61's. There are some options such as Webra, Rossi, MVVS and others...or do like many of us do & search eb*y. YS 60's & 61's come up it seems fairly often.

Two strokes have come back to certain extent in current pattern but it is with the OS 1.40/1.60 and Webra 1.60.