what gas tank is this? (old honda?)

[GRHebard]

so i have this gas tank, i figured it was an old honda, so i bought a CB77 gas cap for it. it didnt fit...
is it an old yamaha tank?
reason i need to know is because i need to order a cap for it.

i forgot to take a picture of the tunnel, but its skinny, it needs to be hammered in to clear my 73 CB350 frame

thanks for the help everybody!

 

[overdraft]

thinking honda cb160....

http://cgi.ebay.com/ebaymotors/Honda-CB-CB160-New-Original-Left-Fuel-Tank-Cover-1965-/190519523406?pt=Motorcycles_Parts_Accessories&hash=item2c5bd9384e

 

[GRHebard]

perfect!
thanks a bunch man

 

[teazer]

Correct. It's a CB160 tank. That's a little small for a CB350 though.