I have a '87 Accord, great car just had to have my carburator rebuilt after about 240,000 miles. Anyway there is a little plastic flattend cone thing on the back of the carb facing the windshield you can fit a small screwdriver in there and adjust it. that is the main way most people fine tune their carbs unless you are an expert and know about setting the float and everything like that (my particular car seems happy at idleling at 1000 rpm)