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FAQ: 2 5/8" Mini Chrome Bezel / White Face - CP7911         Does Sunpro make any tachometers that will work on a diesel engine?                   I lost my tachometer instructions. What is the wiring color code?                   Why won't the needle on my tach go to zero?                   Can I install a Sunpro Tach on my motorcycle, boat, go-kart, food processor or other non-automotive engine?                   How can I connect a Sunpro tach to a Ford DIS-equipped vehicle?                   Can I install a Super Tach II or Super Tach II Mini on a DIS-equipped vehicle?                   Where do I connect the green wire?                   The needle on my tach jumps around. What's wrong?	Does Sunpro make any tachometers that will work on a diesel engine?         Sorry, but Sunpro tachs are designed to work on gasoline burning engines only.