My 89 Force 125 has the dual exhaust (around the prop shaft and the fin). The prop does not have a pass-through for the exhaust is this normal? I purchased the boat second-hand so I can't say if the prop is correct.<br /><br />I know the lower unit is off a 150 HP 1990+ because when I went to replace the water pump I got the wrong one.<br /><br /><br />Thanks for the help!