Need to remove the starter on the 3013 hydrostatic model. Where do I start?

Hi,
Here is a picture from Boats.net.
All Years H3013H HSA RIDING MOWER, JPN Honda Riding Mower STARTER MOTOR Diagram and Parts (http://www.boats.net/parts/search/Honda/Riding%20Mower/0/H3013H%20HSA%20RIDING%20MOWER%2C%20JPN/STARTER%20MOTOR/parts.html)
Peace,
Clarke