ive simplified this for you
take of the side cover (kickstart side) under the variator ( main finnned plate ) is a little gear as you take this out you will see the starter motor gear ,
(no need to remover hte kickstart itself as its all attached to the side cover)
this little gear expands as it spins to the teath come into contact with the cogged large gear
take this little gear and twist it until the bearings are exposed , give it a clean (carb cleaner ) and then a a good greasing
put it all back together , its a 15 minute job
sorted mine out
jase
December 2007