Many problems with outboard motors are caused by dirt or water in the carburettor, and cleaning it only needs common hand tools. In this video I take the carburettor off a Yamaha 15HP two-stroke, take it apart, clean it with carburettor cleaner and compressed air, and put it back together.

The Evinrude 150's carburettors

Starting work on the Evinrude 150, I clean and inspect all of its carburettors, then take its VRO oil pump apart.