small spring usually goes under the idle screw.<br /><br />Or if it's the other type of spring it could be used to keep the butterfy closed.<br /><br />If it's very very small it could come on the top of the float.
ok, i located the parts diagram, it's the spring that attaches to the black plastic primer bracket, where does the other end of the spring attach? It's part #23 on the mercury parts express web site for this motor
