I have a 56 7.5hp johnson. Rebuilt electrical,carb and waterpump. It ran great for an hour and a half starting and shutting down the motor several times. Pulled up to the dock and shut it down. Took it out again and gave it some gas and it just boged down and stalled. Cranked it up again and idled then gave it gas stalled again. I think it was that the pressuerized tank being low on gas (about a gallon left) and not drawing fuel. Dad says its the motor. Any history of those tanks not drawing the last gallon or so? The guy said it was rebuilt but it looks like it's been a while.