once the four fastners are removed that mate the trimmer shaft assembly to the engine assembly, the two can be seperated. But inorder to remove the plastic housing that covers half the engine and obscures the pull rope mechanism a metal engine drive cover must be removed. How is metal drive cover removed?

Charlie C, November 2008

This cover is held in by a screw down the centre of the drive. Remove the screw using maybe a 4 allen key or a T20 torx key, turning anti clockwise.

Twostroke Stephen, November 2008