Ive gotten a used mini bike from a friend, its in fairly good condition, However it wont start!! but for 20$ i couldn't pass it up, After the once over i noticed the spark plug wasnt giving spark, More specifically the magnito wasnt giving the spark plug a zap! The magnito itself is a 1 peice mold, so i cannot get into it. Do they break fairly eazy? I dont know the make or model of the type of bike i have all plastics have been taken off, Aswell as the magnito having no markings on it. How would i go about getting a new one?