I have a 2001 600dark and tried to change the oil myself for the first time. I have changed the oil in my car countless times and am aware of the intracacies involved with screwing and unscrewing drain plugs, filters, and oil screens. I was able to drain the oil and clean the oil screen filter, yet the darn filter will NOT come off! I tried using my hands first of course, and worked my way up to bending the heck out of two oil filter wrench handles. it will not budge. it started to crimp almost because it is on so tight. I bought it with 700 miles on it from a dealer in NH called Naults in Manchester. they are a bunch of clowns up there. I have already had to replace bolts and nuts from my gear shifter which fell off while riding. these Geniuses also put my plugs in withOUT gapping them. fouled beyond belief. that was the second time I had to PUSH my bike almost two miles home in downtown boston. THanks Naults! they might as well have a big top tent for their shop fuull of clowns. now I can not perform the routine maintenance of taking off my oil filter. Does anyone have any ideas besides the old screwdriver cave man tactic? Please brothers and sisters!!!!