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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?	Can I install a Super Tach II or Super Tach II Mini on a DIS-equipped vehicle?         Yes, but depending on the vehicle you may need a tach adapter. We offer a tach adapter (Model CP7558) that is compatible with DIS systems. The DIS tach adapter is not comaptible with Ford ignition systems. See the SuperTach Application Guide or the PowerLine Tach Application Guide for details on your vehicle.