No problems with the double posting. Easy to correct. My search engine for new members looks for a single post and some other criteria. A double post sometimes means I miss the registration.

I use Mobil I (15W-50) and change it every 500 miles. There are 5 grease fittings on the bike's swing arm mechanism. Hit these with grease too at the oil change interval. I use Mobil I synthetic grease (red) here.

The pleated micro filter can be cleaned which I do. Inspect it carefully to ensure no fractures have developed within the pleat folds. Diesel fuel and a soft toothbrush work well. The oil plug screen is a simple rinse.

The bike will take 1.06 Qts to fill its crankcase.

Only 3800 miles and has a cylinder gasket leaking?Wonder if it is a common problem for these bikes to leak oil?

Yes, it's relatively common for the gasket between the cylinder and the crankcase to leak. Mine leaks a little, but not enough for me to justify tearing it apart to fix it. yet.