The sprocket carrier is on a spline. Once the nut is removed and the splinces clean it will slide off.

You can then pull the hub out of the bearing carrier from the right hand side.

After that remove the large circlip on the right hand side and remove the caliper hanger.

Once the rear swinging arm pinch bolt is undone the bearing carrier will pull out of the swinging arm from the left.
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If I have to take the carbs off once more...