I recently acquired a 1974 4 hp Evinrude which has a remote tank. My problem is this: the motor starts and runs fine after about five or six starter rope pulls but in order to run I have to keep it about half choked. Adjusting the rich and lean valves does not help the problem. Do any of you fine people have any suggestions for me??<br />Thanks in advance-<br /><br />Meaux