21 RMAX1000LE2, 13 Yamaha XTZ1200, 85 RZ350L, 07 KLR650
In case you were not aware, the oil filter is very easy to access on the RMAX-2 seat models, I don't know about the 4-seat models but you may want to try the same thing if possible. It is only about a 10min job and a few bolts and you even get a chance to wash out the area. Just remove the side panel behind the passenger door and the black inner fender attached to it, Note; You will have to take the passenger seat out first to remove one bolt that is attached to inner fender, make sure to take both panels out together and do not separate them, it is a real pain to pull the tabs out to seperate them, I'll post the pics and you'll see what I'm talking about. Hope this helps.