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LX150 Complete EVAP System Removal
This was posted by Brtoney but never made into a wiki article, so here it is:

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).

Evap Removal

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 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.

Last Updated Fri May 23, 2014 11:29 am
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