Re: 83 60 hp johnson reverse lock
I have an '81 50 and on the starboard(right)side motor mount just above the transom there is a lever that you can move forward or back that locks the engine down.
Be careful doing this, if you hit something in the water the engine won't flip up and you are way more likely to do damage to the engine and the boat, I personally never lock mine just for that reason.
Reverse will still work you just have watch how much throttle you give it.