So I have an older 7.5 hp, 2 stroke Gamefisher, I believe it's a late 80's model. Having trouble getting it started, sometimes it starts, sometimes it takes 100 cranks, and sometimes you can never get it to start. When I do rarely get it started it usually runs just fine with the throttle wide open. I pulled the plugs out and they were fairly clean, properly gapped at 35. I have had some luck spraying starter fluid into the spark plug wells. Any thoughts? I belieive its a fuel delivery problem because it has a good spark.

Model-225. 581750
Serial-3381