Valve spring lock (keeper) through 2007

Valve keeper for 2007 and earlier Ural engines, including the 650 cc. Two per valve, therefore eight per engine.

If your valve stem is 8 mm in diameter, this is the keeper.

Sold each. (I know, the photo shows two.)

Your old ones are typically reusable even with new valves, but they're easy to lose. But if your old ones are visibly worn compared to these photos, that's a good reason to replace them.