I think that the bike is wet sumping even though I leave it at TDC. Here's why I think so - when I check the oil level the recommended way, it is at 3/4 mark, which is how it ought to be, I believe. After 24 hours, the level is at 1/4th. After 48 hours, I can just about see oil at the bottom of the stick. And at 72 hours, the dipstick comes out dry. The oil is not going out of the system, because when I fire up the bike, and check after a draining down period, its back to the 3/4th mark! So for sure the oil is not exiting the system, and also the evidence on the floor below where the bike is parked, confirms this.
The only problem I have with all of this is that when I ride the bike after a four day break, the only way I can be sure that there is oil in the bike is by going through the running the engine for a bit/letting it drain process, because checked cold, the dipstick will show zero oil.
Other than that, is there anything I should be concerned about? Even after four - five days of not using it, I am still able to start it with just the one kick, once the preliminaries are all done. And there is no smoke from the exhaust so no oil is getting past the rings/valves either.
Can I just ignore all of this as just a quirk? The engine is the AVL 500, btw.