Hard time starting 7.5 2 cycle

[MuskyCoop]

New with boat motors. Just bought motor(with boat) couple months ago. Put in new plugs, cleaned out carb and cylinders. It starts eventually but it takes quite a few pulls. I believe the fuel is getting to carb no problem but after many pulls without sounding like it's getting much spark, it finally fires up and runs fine. What else can I check/clean/replace etc.? Thanks!

[boats.net]

Check the compression to see if both cylinders are same.