What is this hole for in my Mikuni 22mm Oval Bore?

[Sixpac440]

Its the small hole at the bottom ...

Float bow vent?

 

[ole4]

When you adjust the idle air screw that hole is where the air comes from. The fuel is metered from the pilot jet. When you screw the air adjuster in you richen the mixture, when you screw it out you lean it.

 

[Sixpac440]

When you adjust the idle air screw that hole is where the air comes from. The fuel is metered from the pilot jet. When you screw the air adjuster in you richen the mixture, when you screw it out you lean it.

So it needs to vent!

 

[ole4]

Yes the manifolds I use do not cover that area.

 

[maknwar]

Does the original adapter cover it up? Seems like it's a pretty bad place for it.

 

[Sixpac440]

Does the original adapter cover it up? Seems like it's a pretty bad place for it.

It came in a "kit" and the manifold did not cover it up ..

It also came with a spacer

The "kit" dosent show the spacer ... I may need it ...