Here are the steps to replace the valve cover gasket:
1. Remove the air cleaner cover and air filter from the air box.
2. Locate the valve cover, which is located at the top of the engine block.
3. Remove the bolts holding the valve cover in place.
4. Carefully lift the valve cover off the engine block.
5. Inspect the valve cover gasket for damage or wear and tear. Replace it if necessary.
6. Place the new valve cover gasket on the engine block.
7. Reinstall the valve cover and tighten the bolts.
8. Reinstall the air filter and air cleaner cover.
Once the valve cover gasket has been replaced, the oil in the air box should no longer be a problem.