This tool work with flywheel. The flywheel must have 3 equally spaced tapped holes about 1 3/8 +- from the center of the flywheel. Make SURE that there are 3 equally spaced tapped holes about 1 3/8+- from the center of your flywheel.
The washer goes on the bottom and you would thread the nut in until at least the threads go all the way through the nylon portion of the lock nut. This will ensure that the nut will not spin off when you have the outboard hanging in air.
Please make sure that this tool will fit your outboard as it will NOT work on all models of those outboards. Because there are at least 3 different engine lift ring tools used for OMC / Evinrude / Johnson BRP, ETEC outboards.
Very safe, rest assured to use:The ring itself is rated at nearly 2,500 pounds, far heavier than any outboard the outboard engine can be easily lifted onto the hull with safety and stability.
The outboard engine lifting ring tool should be made of high-strength materials that can withstand the weight and pressure of the outboard engine, have good durability, and not be easily damaged or deformed.