Is there a way to tell if the water pump is working on this motor? I know the old Johsons do not have tell tales so I was wondering how do you know if pump is working? I recently purchased this outboard and was told it was winterized and the impeller was changed last fall. Fires up and runs on muffs and shifts fine. I have heard these lower units are hard to get off with the hyrdo shift wires, so I dont want to have change the impeller this season if I dont have to.