Can anybody give me some ideas concerning the why's in which my mercury 75hp will run good one day then spit and sputter the next? The engine was idling good and then suddenly it slowly sputter's out. I give it full throttle and it acts like it wants to get up and go but can't seem to find the next level. I keep having to choke it to start most of the time. I am new to this. I pump the bulb often because it seems that it loses it's prime. And also it drips fuel at the fuel connector that connects to the motor. I can go full speed at times and then in the middle of saying " Yeeeaaahh " it suddenly just powers down. What is happening? Help me please.