Mikuni Carb Identification?

[jordan_carson]

I thought I was getting a steal on some supposed dirty/old VM 32 Mikunis of evilbay for 34$ plus shipping.

Now that I'm breaking them down and cleaning them I've realized there's no choke system. After doing a little research they seem the same as the models with a plunger system however the hole where the plunger would be installed is simply cast over.

The markings on the side of the carbs are H4 53.

Anyone know what I've got here and if I can run them on a cb350?

 

[barnett468]

Those are the only numbers on there?

Those are not aftermarket . . they are from a production multi cylinder bike most likely . . they can be jetted to work on your bike if someone knows how to jet carbs.

 

[jpmobius]

Bit on the large side for a stock(ish) CB350. Getting it started with no fuel enrichers might be nearly impossible unless you run stacks and can manually (literally) choke it.