What is the carb size on a '78 F2?

[roo]

Does anyone know what size the carbs are on the '78 F2?

I've looked on the web and all I can find so far is that the '69-'76 are 39mm and the '79-'83 DOHC are 42mm

[SteveD CB500K0]

Try the .net website (not the forum).

That's where all the good stuff that we've collected over the years lives:

http://www.sohc4.net/?page_id=2064

[K2-K6]

Official manual lists them as 28mm and I.D. number as PD42A