P/N 51405 - 21cc dish, 1.457 compression height. With a 62cc chamber is 10.25:1 or so static, and with the 4" crank, you need a cam that will be closing the intake valve by 47°@.050" after Bottom Dead Center on the compresssion stroke. That will give you abour 8.3:1 dynamic, with a .040" quench distance. That's pump 89 range.


Well, art is art, isn't it? Still, on the other hand, water is water! And east is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does. Now, uh... Now you tell me what you know.