Stock 84 250r piston size?

[ColtonGG33]

Rebuilding my 250r and I need to make sure I have the right piston size before I order. The jug is stock no boring or honing. I think the stock size is 70mm but I just want to make sure it's right haha

Thanks Colton


Also.. Might be doing a semi restoration thread if I can get my computer working by the time I get all my parts ordered in.

[atc300r]

Stock 81-84 250r bore is 70 mil.