nig said:If the guy you bought the bike from did his initial service I bet the filter won't cause you any problems. I personally would replace it just for peace of mind, it's really not that much trouble. To get it off try the "screwdriver method." Hammer a screwdriver into the side of the filter and use the handle of the screwdriver as leverage to take it off. If it doesn't come off that way (not likely) then you're in some trouble.
ditto on that...had to do that the first time I changed my oil and filter on my bike. The bike had the original from the factory as I bought the bike used with only 300 miles and that filter was on pretty tight!!