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Hello. My name is Tan.
Could I get the engine model and serial number please?
Go to the terminal strip where the wiring harness connects to the engine on the side of the motor and disconnect the white wire. Now check for spark. Do you have spark?
Ok locate the CDI module # ***** disconnect the white wire from the module. Do you have spark now? Dues to the age of the motor the wire may not be white. It could be more of a cream color.