[willy]

Skool so what is a 99 johnson v4 115 looper ??? also in keeping with this post, I would check compression on that head, if it is good i would have a good mechanic redo/update everything and add the back up motor. Bad compression I would go new motor, in the long run it will save you money. Unless you are like some of the guys on this site and can rebuild a motor in your sleep IMHO I just did this on my 1992 merc 150, it had issues that kept popping up, though it never stranded me it was touch and go a couple times, on the second trip back to the mechanic I told him if it is original replace it , hoses lines wiring electrical components pumps and if your testing says it is fine change it anyhow I'll keep it as a spare now i go out with a lot less worries