Kiroshu

My old 3.0 88 4runner has a bit of a start problem. It does not affect driving range and only does it at first start up usually when cool but does a few hot. When i turn on the motor it will spit and sputter and idle at about 2-300 rpm for a min then after it warms up its perfect.....? soooo.... not sure what to check or fix? Any suggestions peeps?