Sym husky parts and help

[Carlmurtagh]

Hi I have a Sym husky 125 2000 reg was giveen it as a project to do up I'm looking for parts:

Parts.
Rear wheel (found)
Rear seat (found)
Speedo cable
Speedo drive
Starter motor
Kick start (found)
Rev cable (found)
Solonoid (found)
Spark plug (found)
Brake lever and clutch (found)
Fuel pump

Advice.
1.when riding it lags or Boggs at high rpm has no power any ideas what this could be
2. I have a lose pipe that sucks in and Cannot find where it's ment to go comes from the intake monfold (see picture)

So if anyone can help me source and find the rest of the parts I need would be a great help.

[Stoker]

That looks to be a vacuum line, should be attached to the valve on the fuel tank. That is, unless you have a manual type fuel valve...do you?
ie, do you have to turn on the fuel manually?
Edit
Quick google search points to your bike having a vacuum operated fuel pump, in which case that pipe should connect to it.

Bike won't run well with what is, in effect, a massive air leak at the inlet manifold. Has someone replaced the vacuum fuel pump with a normal one? (not sure how else it'd be getting fuel to run) If so, you will need to plug that rubber tube, see if it runs any better.