I am rebuilding the carburetor on my 73 4hp Johnson and there are a couple of things Im not sure of.<br />I bought a rebuild kit and it comes with an expansion plug. How do I remove the old one, it seems to be jammed in, and is it really necessary to remove the old one.Im not sure what this part does. Second the kit comes with a replacement float valve. The float valve has this little wire on it that when installed the top of the wire rests against the underside of the float arm. It looks like it is made that way but I am not sure.<br />Can anyone advise.