WELCOME TO THE FORUM! Always glad to have another 800-er on board! (Your next job is to post pics!)
If you go Fram (LOOK OUT! There will soon be a TON of people shooting that idea down! People are passionatea about their filter choices!
) it's a PH6017A, and you will need 3.0L if you change the filter (2.9 if you don't, but CHANGE THE FILTER!). I like to use the Kawi mineral oil, 10W40... Otherwise just go to a Kawi dealer and ask for the filter for your bike, or to another aftermarket parts source and ask for the cross-ref to the Fram...