Re: 115 Johnson - No ID plate.
well, it's prior to the primer valve, by the way the choke linkage doesn't look right. doesn't have the block mounted fuel pump, uses the hose to the block. 70's early 80's i can't tell if it is electric shift, but i don't think so, which puts it 73 and newer. you could go to brp and look up some of the various years of 115hp.
i you go to look at it. print out the page from outboardbooks.com, for the model #'s of the 115's. i do this when i go look at an unknown motor. that way i know for sure what i'm looking at.