I ended up breaking off two bolts for my cbr250r(2011)'s oil filter... I was using my torque wrench and suddenly snap... stupidly I thought it was the torque wrench making the sound and ended up snapping a second bolt......... Anyway.. I have replacement bolts on order but am a bit overwhelmed with all the info on how to remove bolts properly. Any advice? pm's welcome. I may have messed up the calibration at some point as it worked flawlessly the first time I replaced the oil with the same torque wrench. I'm fairly certain I had it set correctly at 12NM.