Topic: 750 carb question on float bowl vents

[Steve_K]

I am rebuilding my 750 carbs (657A) with a few parts from a (657B) rack. I noticed on both carb racks that in the #4 carb one of the brass inserts was missing in both carbs and no where to be found.  I will try them with out it, but did a PO do that or did Honda do it at the factory.  I have a pic with a an arrow pointing out the missing (?) brass part. 
Do I need to try to find another #4 carb?
Steve

[Johnie]

That is normal. Mine are the same way. That is a Honda thing. Not really sure why, but I also looked at a few extra carb racks I have here and they are all the same. Good luck with your build.

[Steve_K]

I thought it was weird that both were that way. I am doing a 73 750,  planning to make it my touring bike, after I fix the electrics, the bearings, the forks, and on and on.  Thanks for the response,  I can finish the carb rebuild.
Steve

[TwoTired]

The carb bowls have interlink tubing between them to vent the bowls. #4 only links up on one side of it to #3.

[Steve_K]

The brass insert that is there goes to the linking tube as you say.  I am curious that the other 3 carbs have two inserts.  The #1 carbs in both racks have two inserts.  I would have considered Honda to be more consistant in this. 
It is all part of the fun and challenge to make these bikes sing again.
Thanks for your response,  I appreciate it.
Steve