Beautiful low hour motor starts on a pull, idles slow and smooth. Issue is that the longer it idles the louder I hear a ping or knock. Seems to be coming from the head itself. Motor has never been opened , all of the paint and gaskets appear as on a new engine. I am not much familiar with four stroke outboards. I am guessing the valves need to be adjusted, never did that before. As for being progressively more audible. I hope there is not an oil pressure issue and thinking that as the engine warms the valves become louder. I think I have seen that there is a hot and a cold method of adjusting the valves.
Any input on this appreciated.
Any input on this appreciated.