http://www.ehow.com/guide_7-http://www.ehow.com/guide_7-cars.html.htmlwww.ehow.comhttp://www.ehow.com/how_2328387_removing-carter-pin-axle-nut.htmlWith a couple of tools, the motorcycle's carter pin and axel nut can be removed when changing a tire; learn how to remove them in this DIY video. Published on 6/16/2008http://www.ehow.com/tips_2328387.htmlFirst - the pin is a "Cotter" pin, not a "Carter" pin. Second - a torque wrench is something of a precision instrument; it should NOT be used as a big ratchet to loosen a tight nut as demonstrated here. This is completely inappropriate and will cause the torque wrench to go out of calibration. I would be very suspicious of any work done by a shop that misuses their tools in this way.