Hi does anybody no what keihin vb52b carbs were originally fitted to as i have them on a 1981 cb750f they seem to run fine but i believe it should be fitted with vb42b instead.Im curious and cannot find any information on them and hope someone out there may enlighten me.Many thanks in anticipation.
The CB750K, KA and F models had VB52A carbs. I believe the CB900F had VB52B carbs but am not 100% as the reference material is in the loft at the moment. The 750C models also used different carbs, maybe 42s.
As it's running fine I wouldn't worry too much though.