Sorry to see that dutchman, but it was certainly no surprise.
The good news is that your dutchman is not preloaded, so it should be fairly easy to remove. However, take no short cuts when preparing for its removal. If it were me I would first take a Dremel tool with a small globe-shaped stone and make a dimple about 1/16" deep in the center of the broken face of the dutchman. Then using a hammer and a sharp prick punch make a sharp dimple in the center of the previously made dimple. Next using an appropriately sized drill bit for the "Easyout" you selected, drill a hole using the prick punch dimple as a centering guide. Insert the Easyout into the hole you just drilled and give it a light tap with a hammer. Lastly, using a wrench, start rotating the Easyout to the left and the dutchman should come right out.
I would then drill, tap and install a Hellicoil sized to match the thread on the valve cover bolt. Obviously you'll need to buy an new bolt from Kawasaki. Lastly, I would buy new sealing washers for the valve cover bolts, and perhaps a new valve cover gasket.
Of course before grinding, drilling and tapping, you need to take whatever means necessary to keep debris out of the head. Probably stuff some rags around the area you will be working on.
Last edited by Norton 850; 09-28-2019 at 07:24 PM.