Re: Giving up on V42A Carbs- Need Help with replacements

Posted by sgtslag on
URL: http://vintage-and-classic-hondas.81.s1.nabble.com/Giving-up-on-V42A-Carbs-Need-Help-with-replacements-tp4041697p4041698.html

Welcome to the Forum.  Can't shed too much light on the issue, but I can say that the 1981 carbs are Constant Velocity, and the pre-1979 carbs are not -- very different animals (1979 was the first year of the CV carbs).  Are the VB42 A carbs OEM?  The OEM CV carbs can be rebuilt, they are definitely not throw-away's.

Do you have a stock airbox, or are you using pod air filters?  The CV carbs are extremely difficult to configure with pod air filters -- they only work properly with the OEM airbox...

Shoot us some additional information on your set-up, and the 'CB750 Hive Mind' will attempt to help you.    Cheers!