I have a 1988 Zuki 40 hp. It has been sitting for about a year and a half. I have cleaned the carb several times and checked the fuel pump (she is pumping strong). The motor will not start unless I spray fuel into the carb. Once she is fired up it sounds really great and will idle and rev just fine. The comp is 120lbs and 115lbs. Any ideas as to the cause of this. Thanks for the advise.