Just went through this process today. I was surprised how little oil drained from the drive assembly, around 175ml - not much I thought. Filled-up to point where a little excess flowed out the top hole, took around 200ml - still not much I thought. Had trouble finding how much oil there should be, most references (on the net) to the final drive oil change doesn't mention it.
Finally, I found a reference in the small owners manual (read the instructions first - d'oh!), it wasn't there when I first looked, I swear. Anywat this indicates that the capacity is is 155cm
3 - I suppose the Honda translator mean't 155ml - and even less than earlier thoughts.
Any thoughts from here?