cogh, sniffle, sneeze

[hookset]

Boat started with a little cough when at idle, never bogges down and stalls and it goes away when running. I havent really run boat in 1.5 years other then back and forth to slips and just letting motor idle. Fuel is stabilized but sounds like one of the jets in carb may be a little clogged. I have cleaned carbs before on small engines so figured I could do it. As I research it, it sounds as there could be two Carbs on motor. Is this true? Are they independednt from each other, like one on starboard cylinders and one on Port cylinders? Do i need special tools other then basic thin wire for jets, screwdriver, carb cleaner, and compressed air? Is taking carbs off and cleaning over kill for a slight cough that resolves when at higher RPM? should i just put sea foam in a in a gal of fuel and hook fuel line to seafoam gas and run boat at ideal while sea foam runs through?

As a side noted i am going to run compression test prior to doing anything with carb to be sure the problem isnt larger then appears?