Welcome to the forum. If you have a torque wrench, you can simply torque the bolts to s
If not, tighten NO more than 1/4 turn and ride the bike. If it still leaks, repeat the process.
I had some oil leaking on my head. I replaced the stock spark plug with a Denso and it stopped the leaking. The tolerances on the Denso spark plug were more precise than the factory plug, and the leak stopped.