I don't have enough posts to have permission to make a wiki, so I'm posting this here. If you want, you may move this into a wiki.
Here is how I removed my EVAP system. It was easy, and took about 30 minutes. I now run much happier, and don't have to worry about vapor-lock, or flooding my air-filter.
Proceed at your own risk. I'm not saying this is the best way, it was just the way I did it. I'm not responsible for you breaking your scooter.
You will need:
Metric wrenches or sockets
1 Small hose clamp
1 Set of plastic hose connectors
1 set of vacuum plugs
New Foam Paint Brush (to make the cover for the evap-hose [c] inlet on the carburettor).
Diagram of LX150 Anti-EVAP System
The orange letters (A,B,C,D) are used in my photos to identify hoses, and to give the reader a point of reference.
*Note. On my 2007 LX150, The Vacuum Fuel Tap (#6) does not connect to hose A as the above diagram shows.
Instead, the Manifold Hose (Connecting the front of the carburetor to the manifold) has two nipples on it.
1 Hose connected to the Cannister (#5) via the Safety Valve (#4).
1 Hose, connected to the Vacuum Fuel Tap (#6)
To remove any hoses or components from hoses (With the exception of Hose C from the Carbuerator [#1]) you will have to remove the metal clamps from the hoses. To remove the clamps:
1. Put a small flathead screwdriver under the end of the clamp
2. Gently hit the end of screwdriver with a hammer
3. Twist the screwdriver to pop open the clamps
Remove the pet carrier.
Remove the two bolts that hold the Canister (#5). * Ensure there are no other clamps or ties holding the canister or the attached hoses.
Slide canister down and carefully move into engine compartment. *Be careful not to disconnect any hoses while moving the canister.
Remove hose A from canister
Remove hose B from canister
The canister can now be discarded or saved for future use.
Remove the two bolts holding the Roll-Over Valve (#3) in place.
Move Roll-Over Valve down, and into engine compartment.
Disconnect hose B from the Roll-Over Valve.
Carefully pull hose B out of engine compartment and store for later steps.
Disconnect hose C from Carburetor (#1). *This hose should pull straight out.
Save hose C for later use.
Disconnect Hose D from the Roll-Over Valve.
Disconnect Hose A from the Manifold Hose.
Hose A (with the Safety Valve (# 4) on it) can now be discarded or saved for future use.
I used a foam brush to make a filter for the hole on the Carburetor where I removed hose C from. *I saw this filter idea on modernvespa.com I can't take credit for it.
Cut the brush as show.
Gently remove, being careful not to damage the new square section of foam.
Cut a 2-3 Inch section off of hose C.
Put the foam on one end of the hose you just cut, attach it with a hose clamp, or tight zip-tie.
I sprayed a touch of filter oil on my finger, and dabbed it on the foam to help protect the carburetor.
Attach the new hose/filter combo onto the carburetor where hose C was removed from.
Plug the nipple on the exhaust hose (which hose A was removed from) with a Vacuum cap.
Secure the cap with a hose clamp for added security.
Insert a connecter into the end of hose D.
Cut a long section of hose B, and attach it to hose D via the connecter.
In the event of an over-fill or a tip over, fuel will come through this hose.
Secure the newly lengthened hose D to the frame and route the hose to a safe place for gasoline to drain.
I simply followed the frame down and secured the hose with zip-ties.
Here is hose D, If I overfill my tank. Gas simply pours out onto the ground. Not my air filter.
Take a moment to enjoy your newly de-EVAP systemed engine compartment.