I am having some surging issues (not enough fuel or air?) during hard acceleration to full throttle and I am checking out all the issues that it could be. I cleaned the spark arrester (very dirty), i am am going to change plugs, cap and rotor and the only other item I can change at home is the fuel filter. I am 99% sure the issue is not bad gas since we burned thru 90 gallons this past week and we shared gas with other boats and no one else had an issue.

I ran great early in the week but about the 3rd day things started getting worse. Any help our pictures would be greatly appreciated.