I changed the spark plug today crunk right up. Thanks for the advice. But it still will not stay running. I'm not sure if it's the old gas or what not. It rode fine but there were particals coming out of the exhaust pipe could that be built up or is it something I should be worried?Well before you go pulling the carb off or anything else you are going to need that spark plug changed. You can grind down an 18mm deep well socket or buy a low clearance 18mm. My cheap emgo one just wore out the other day and i have a motion pro one on the way now. Cant complain about the emgo asnit was 5 years old. And i change the plug at every oil change. It almost sounds like its running out of fuel. Sorry but i have to ask the question. Fuel tank is full? And fuel is in the on position? Also how old is the gas thats in it? Is the tank vent hose going down the steering stem shaft? I have seen the stem shaft fill with water and hydro lock the vent and stop fuel from being able to flow before. These are just a few easy things to check.