I can't get WOT out of it. Took the muffler off,cleaned out the exhaust port and tapped the carbon out of the muffler. Was not bad. New spark plug. Filter is clean. Still not able to get WOT. Plugged port in the carb maybe? I have not put in a new fuel filter yet. It's getting dirty but is that enough to kill the power alone? It has me puzzled. I know other members are running the T260. Any ideas? Thanks.