My 2 cents, I would not worry about it not having a plastic cover on the filter. The amount of moisture absorbed would be insignificant IMHO, and will evaporate IF there was anything the first time you ride the bike after the oil change.
Glad im not the only one that didn't know what it's for, nice to see everyone got curious and went and checked their bike:tup: Appreciate the input ya'll.
Theres a threaded hole, im assuming from the R1 from olden days, just curious what it does, right side, on the crank case cover, ive included a picture, thanks yall.