Have emptied the sump and replaced the oil filter, but plate next to oil filler cap has details in Japanese, and some numbers (3, 3.8, I think is what I can see). I don't read Japanese, so can someone tell me how much oil I need to put in?

3 lit - without changing oil filter
3.4 - in case oil filter also had been changed
3.8 - for new engine or after engine overhaul

Cool, thanks. I saw those numbers on the bike, but the squiggly lines didn't help at all