I've got a 1984 Johnson 70 HP(3 cycle). On the top of the bottom carb. there looks like a nipple that is broken for a vac. line.(I have a small hose next to it that the previous owner put a screw into the end of the hose) This nipple looks like it will unscrew, but I don't have a part # nor do I have an owners manual. Can anyone help with a part# and/or where to buy.<br />Thanks
