RE: WHY NOT a MOKI/MARK engines thread
Ray, here are my two, a .61 LongStroke and a rare .51rc. Both are high quality and smooth running. The .51 is wearing a MVVS 7mm carb, it came with an OS carb which I gave to a friend for an OS engine. A 12x7 is about as small as you can go on the .61ls, it loves to work.