Rough at idle and good at highway speed sounds to me that this can be caused by one of two things or the combination of the two. It sounds like a fuel problem or a spark problem. I would check your plugs, wires and cap. I had this problem in my 96 v4, and after chasing it for to long all it was was a wire that was not seated on the plug all the way. So it acted like a bad plug at idle and once I got the revs up in was fine because there was more spark. Or it might be your carb, the idle float is dirty. again I have had this problem in the past, and a good cleaning did the trick. good luck hope I helped.
posted by 69.253.23...
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- valves, Moon, Tue, 13 Dec 2011 21:46:43
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