ORIGINAL: Gray Beard
Joe, you do know that the MAS K series is designed for four strokes and lower RPMs?? I still have a bunch of the older style in my box from when the K line first came out. Just wondering??[:-]
Well, Tower's site says for 4 strokes, but doesn't say why. They don't have MAS in 12x4,5,6 without being K series. So no, didn't really know it but I don't really use them anymore. Thanks for the tip Gene.