We use to use diodes when I worked in St. Louis years ago to keep the alternator from back feeding the ignition switch when the engine would not shut off. They do sell a resistor that bolts on the back of the alternator for this. It takes the place of the idiot lite. You can also just hook the alternator wire up to the accessory terminal of your ignition switch. This will prevent feed back when you shut off your engine.
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Today's Featured Article - Engine Basics: Spark Plug Cleaning - by Staff. Cleaning procedures: Brush or blow dirt from around the spark plug base. Remove the plug with a correctly fitted wrench. Examine the porcelain insulator and points. If the insulator appears to be melted or blistered, cracked or broken, and the points seem unduly burned it is evident that the plug is operating too hot and it should be replaced with a colder plug. If the plug is fouled excessively with carbon it apparently is operating too cold and it should be replac
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