I have a Mercury 115 hp, 4 stroke outboard, 2013 year. The motor sometimes starts to miss like a cylinder or two cut out, major power loss. Seems like it happens most when trying to run at higher rpm’s. Then other times it will run fine. Seems to be getting worse to the point at the last time...
So I checked the pumps, lift and hi pressure, they’re working but I don’t have a way to check pressures. Changed plugs and both filters, also cleaned the injectors.