I'm hoping someone can tell me the correct name and purpose of the vaccum lines identified in red on the attached picture. I've searched the FSM emissions section but couldn't find any related pictures. Any help would be appreciated. Thanks in advance.

 

those are the vacuum lines that go to the oil injectors.

you can see them just below the fuel injectors

 

The picture is very helpful. I'll be running premix so I guess I can cap them off. Thanks!

 

if you are going premix than don't worry about it. hold onto the vacuum hose spider because they are hard to find.