I own a late 80's, 50hp (2 cylinder), 2 stroke Evinrude outboard. It is in good working order now after replacing the impellor, and recently the trim motor finally had to be replaced. My problem is as follows. My outboard starts perfectly everytime from cold but is very difficult to start after it has been allowed to run and then allowed to cool down for about an hour. What are the possible causes of my problem.<br /><br />Please help,<br /><br />StuNZ. 