If you want to fix those plugs, your gonna need to find a way to get them out. They will probably back out, and then drill it out and put a helicoil in there.

 

Those hose have to go somewhere. being that one of the hoses goes directly to the end of carb, which happens to be where the vaccum asisted slide diapram is, it stands to reason that the bike is not running right because the slide is not moving up fast enough. thats the main reason I would have assumed it was supose to go into the air box.

I really dont think this right, but it almost looks like they connect together. maybe a sleave is missing that orignally connected them? It looks like the smaller hose is a vaccum source, while the larger hose is a vaccum assisted ..... maybe connect em and try to run it. But its only a guess, and probably not a great one, but I'd do it just to see if runs.

 

That's what I was thinking. it looks like they would line up perfectly, but it's missing a connector.