Shakadula Posted June 25, 2002 Share Posted June 25, 2002 I think I am running rich cause there is a strong gas smell and I have black smoke (only a little) coming through the tail pipes. Any guidelines on adjusting the 400-4 carb on a 67 GS400 TH400? I am really looking for better mileage too. Link to comment Share on other sites More sharing options...
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