My new Slant starts but wont stay running!

Check float level or stuck float. Itll fill up and then choke itself. does it run then slowly start to sputter and then die? try this: after 20 seconds, pinch the fuel hose off and see if it runs any longer- if it starts to die, let some fuel pass. That may narrow it down to a fuel issue. running fine then dying doesnt sound like an ignition problem unless the coil is getting smoking hot in 30 seconds...<<<<<<Oh, its an electronic? Bypass ballast resistor completely. It wont hurt anything for a few minutes. EZ diagnosis.>>>>>>>>