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I have a 1989 1200 sportster and it's running rough lots of white / blue smoke. also a metallic rattle above 20k rev. Think could be carb but any ideas

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Hi Karl, blue/white smoke not good, usually oil and the metallic rattle sounds like something broke. Do a compression or leak down test and should be no more than 20 lbs between cylinders. Also I would take it to your local dealer or shop and have them take a listen. Good luck

Posted on Apr 15, 2015

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