Just bought a 300cc 1998 Polaris Xpress. Starter is dead, so the pushbutton start doesn't work, but for the first couple days would pull start within first couple pulls. It died as I rolled into the garage today. Went back out ten minutes later and it won't start. Spark plug is clean, getting great spark, took the carb off and cleaned it really good. Checked fuel line coming from the gas tank (gravity fed) and fuel is flowing freely. But no matter how many times I try to start it, the spark plug is dry when I pull it out. I could see if this thing was flooded out, left sitting for years, or misused, but it ran only minutes before with no problems. Any help would be greatly appreciated. I am not very knowledgeable about atvs so please bear with me.