Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Sorry I'm not much help Jim , my ritual with the 2 I have is (initially) to close the throttle completely, then open 1\2 turn, loosen the fuel line from the carb and blow fuel from the tank to the carb and make sure there are no air bubbles in the fuel line ,spin the correct direction (I forget this frequently) and adjust carb for best performance. I have made a 5/8" od brass throttle knob that I have adapted to the the needle valve, being held on with a set screw , this has helped me greatly in fine tuning he carb needle valve. After running I always put a silicone tube to the fuel tank and blow to "bump" fuel back to the carb before restarting. This has worked well for me.