hello,I just got my boat on the water today.runs fine in the tank,but when I put it in gear on the lake it dies! I adjusted the carbs,idle,ran fine,same results.also I can manually hit the throttle on the motor itself, lots of power! I did replace all plugs and cap&rotor but not points,could this be a timing problem!also before dying in rev-the motor wanted to climb!please help me if you can thank you! johnny!! 