In this video I go through the steps to check compression on a PWC 2 stroke. In this video I'm testing the compression on a fresh 1200 CC Dasa 16 mil stroker power valve motor but it's the same procedure for most pwc 2 strokes. Yamaha 650, 701, 760, 800, 1100, 1200 Kawasaki 440, 550, 650, 750, 800, 900, 1100, 1200 ect..