If you don't have the 3.3 beta these mods won't work...

realchainsaw.tbm


realchainsaw2.tbm


The white blocks at the end spin really fast.
Sometimes the spinning of the saw rotates your body, to stop this, try extending or holding the right arm joints.

realchainsaw.tbm
default settings

realchainsaw2.tbm
settings in mod

download them from box cuz my attachments are full..

realchainsaw.tbm:
http://www.box.net/shared/g95bs2jsok

realchainsaw2.tbm:
http://www.box.net/shared/muehu8rsok