Check oil level, take off the spark plug clean it and regap and or buy new one and regap. Take carburator off and clean it. Test coil and ignition switch. Clean gas tank and fuel lines. There could be a lot of other things to check. It could be a safety switch, dirty cables,bad battery or bad wiring. It could just be a loose wire that's not grounded.
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Check oil level, take off the spark plug clean it and regap and or buy new one and regap. Take carburator off and clean it. Test coil and ignition switch. Clean gas tank and fuel lines. There could be a lot of other things to check. It could be a safety switch, dirty cables,bad battery or bad wiring. It could just be a loose wire that's not grounded.