I have a quick qestion...I have just got my 4 hp johnson seahorse going and out on the water yesterday, Its has a built in gas tank that holds about a quart of gas. It was a little windy yesterday and I was heading into the wind and the motor ran out of gas after traveling about 1000 yards? can I hook up an external tank to this motor? and will it be harder to do than its worth?<br />All I have is a 12' john boat and me 240lbs.<br />Model # 4w79d<br />thanks,<br />no4njnk