Well I do not know how much you know so do not take this the wrong way. I would take the buggy or truggy and tip it on it side to see if fuel comes out of the exhaust, maybe its flooded. Remove glow plug and check it, turn over without plug to see if fuel blows out but pinch off fuel line when you do. Make sure fuel it getting to carb. Prime the carb yourself by blowing into exhaust fuel line so you know for a fact it has fuel. Again you might already know this.