I have a old Johnson Seahorse 2.5 Horse HS-20. It runs great, just trying to get it to pump water is a issue. I've taken it all apart and cleaned the whole lower pump system. The rubber pump propeller seams to be fine. It looks good. Just can't seem to get it to pump much water up to the motor. There is just a very very small amount of water that comes out the holes under the motor in the shaft. Did these guys just not pump much water. The motor gets very hot if you run it for more than 5 minutes. I've tried to find a new rubber propeller but just can't find one. I just don't want to burn the thing up. Plan on taken this guy up north to remote lake in Ontario the end of this month and running it so any help would be appreciated. Thanks in advance.