I recently was running motor at wot and it died, the motor started back up with no problem. So I headed back to the ramp when it died again. I could not get it started, the battery was dead. I charged the battery, now the motor does'nt want to turn over easy, unless you take the spark plugs out. I did notice the positive cable going to the battery has some corrision on it. Does anyone have any ideas as to what is wrong???