How to make single carburetor intake manifold for Honda Shadow and other v twin Motorcycles PART 2

your desing is really nice . but.........sorry to tell you, your motorcycle will not run properly. you will make adjustments but still you will not get the right result. it will work properly at low revs and not at high revs. or the opposite, the reason is that the air intake piping should have exactly the same length from the carburetor to each cylinder .for this reason there is the air box above the carburetors. I have done it on the same motorcycle. what you have to do is to join the two inlets in the center of the distance between the cylinders and from there to join the pipe that brings the mixture to the cylinders. you will also have to do some tests with the Zigglers inside the carburetor. after a year of testing on different routes, I managed to set it up with a dragster specialist. good luck.

Did you use the crank case breather banjo thing to mount the bracket?

Now do a v4 😂...