Bought a used mercury prop# 48-42520. Was told Mercury supplied the props for these motors, was supposed to fit 97 Suzuki 8hp 2 stroke with 8 spline shaft. Also bought suzuki prop kit# 57630-92D00. The prop slides on fine but spacer in kit does not allow any room for prop nut or washer. Prop also doesnt sit recessed into housing like it should. I have a schematic but it doesnt help. Anyone have any experience with these?