1984 Honda 250r Stock Gearing?

[AlbinoDuck]

I need a new chain for my 1984 250r and was wondering what the stock gearing is? and whats the correct length chain for the stock gearing?

[HondaRidr]

I have an 83 and the stock gearing is 13t/42t. The 83 and 84 should be the same. I think the stock chain length is 90 or 92 but I cant remember what it is exactly.

[Auto_Demon]

i just got new chain and sprockets and the size is 13/42. 520. 90 link chain