First of all disconeect your live terminal from your battery, then using a 10mm spanner take off the switch connected to the top of the starter and unclip it. then there are two long 10mm bolts that hold the starter motor one is easy to undue the other one is at the bottom and you will have to get underneath and access the bot from there using a 10mm spanner. at the top you will see some cabeling/wires running into the starter follow these to the back and there will be a cover at the top right take this off and using a 12mm spanner undue the connector( this supplies the live power to your starter, hence taking off the live from the battery.) once you have done this then pull the starter off and it should come away with a little bit of manouvering.
Tazzman
August 2010