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Not without making some tank mounts and a little ingenuity. Also it MUST be a carb tank and not an FI tank. A fule injected tank will not work. There is a tank made for sporsters that fit right and give it the big twin look with dash, commonly refered to as quick bob tank. You are looking at about $500 dollars to convert it yourself. More for a mechanic to do it.

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14y ago
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Q: Will a 2002 fat-boy tank fit 1990 sportster 1200cc?
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