I just bought a used boat with a Yamaha 115 Year model 2000. I have never had a boat motor that is so hard to start, I think sometimes I am going to run my battery down before it starts. It will fire off fairly quick but will die almost immediatly. After that initial fire it is all down hill after that. I have tried several different starting sequences ie: continous choking, pumping the bulb till I get pressure and no choke. I have about a 15 min. drive to boat ramp with a transom saver that has my motor tilted at a pretty good angle that could be letting fuel to fill my carbs. too much? Any one have this problem and some advice would help me and the person behind me at the boat ramp.