83 200E - Is the drain plug 24MM?

[RedArrow10]

I am changing the oil on my 83 Big Red and the largest size socket I have is 19MM. I have to go purchase one and can't find in the shop manual where it shows what size the bolt/drain plug is? I read on this forum that an 85 200X is 24MM. Does anyone know if that is the same for mine?

[MNATC]

My '84 big red 200ES I use a 15/16" wrench. I don't have anything metric over a 17mm.

[RodKnockRacing]

its 24mm.....