How do I test for spark on 150cc jonway

Simple my friend and fellow biker. Remove the plug from the cylinder head, attach the plug lead again and rest the plug on the metal head ( don't actually hold it, it will spark at 18000 volts) and gently turn the engine over, it will be easy to do as there will be no compression with the plug out, if the electrics are ok, you will see the plug spark ( difficult in bright sunlight so, do it in a workshop or the shade) good luck