Here is my experience with Wax deposits. Engines I serviced that bought their fuel from the local Marina, same said engines that the boat owner never, ever, ran the tank down on fuel but just topped it up when coming in, those engines would have the waxy deposits in the carbs see here. So not only do you clean the carb bowls, jets, etc but be sure and clean the passage between the stripped Main Jet to the Venturi because the wax loves to build up in that vertical passage, layer upon layer, till it starts starving the engine for fuel under a load. 2 Stroke engines risk Lean Burning a Piston. My