Re: 1993 Johnson 115HP Oil Injection
We assume you mean the oil injection.<br /><br />The mix should be at 50:1 (quart to 12 gallons).<br /><br />He should have unplugged the wiring harness to the oil injection pump. If that is undone and you still get a warning then something else is wrong. The overheat warning will continue to work if the oil injection was disconnected properly.