Leaving a machine outside over summer under a tree or with a cover on it will rust the inside of the engine and bearings. Seen it first hand many times on customers sleds.
It looks as though that rod has some blue coloring to it too. If it is that crank is on borrowed time before the rod seizes.
It looks as though that rod has some blue coloring to it too. If it is that crank is on borrowed time before the rod seizes.