EVAC Canister Removal

Today is Sunday and it seems like a nice day to do some minor wrenching. The EVAC canister on the right side of the bike is a charcoal filter where all the excess gasoline from the tank and throttle body are filtered before being leaked to the street.



On itself, I have nothing against that, but the canister is very ugly, hanging off the side of the bike and everybody has something to say about it when they see the bike. Removing it does absolutely nothing for performance and is not bad for the bike either.

There are multiple posts around in forums on how to do this, but none have pictures. I used a post from the ADVRiders forum as a base and added some pics myself. The whole thing takes less then 30 minutes to do if you don't take time to takes pics... :-)

1) To give yourself some more space, take the seat and the red, plastic tail piece off. The tail piece unbolts with 4 screws, so this takes only a few minutes to do.


2) Pull the hose on the bottom of the cannister off and pull the hose with the quick connect from the check valve. Leave the check valve plugged into the harness and keep it in place so the EFI doesn't throw fault codes. And yes, due to some minor carelessness on my side, the connector the canister snapped of, which is why that hose is in a separate picture...




3) Pull the other hose off of the check valve pointing to the front of the bike and plug it with a bolt or something the correct size, this vent hose goes directly to your throttle body and you don't want a vacuum leak let alone get any debris in your engine.



4) Pull the 3rd hose, at the top rear of the cannister (going to the gas tank) and get yourself a male/male fitting so you can connect it to the first hose you pulled off the bottom of the cannister. Since I did not have one, I found that a cut-out piece of plastic pen fitted perfectly (YMMV).




Many people use a tie wrap to mount the hose to the frame, but I opted to unscrew the entry point of the bottom hose and re-route the hose behind the plastic (between the frame and the gas tank). I think this just looks cleaner.

5) Put the canister in a zip-lock bag and 'store for later retrieval'. Below are the before and after pics.

Before	After

All and all, I think this was a successful operation. It was not brain surgery, but then again, I am not a mechanic... And the result looks just better.

Thoughts:
I unbolted the complete mounting bracket of the canister, as I will no longer be using it. Somewhere out there, there is a 1 liter bottle that will hold some additional gasoline if the tank is just too small. This bottle mounts in the bracket that is used for the cannister. Since I am riding only city traffic, I so not see the use for it. Maybe there are even some other uses for the brackets out there, like bringing a toolkit or a place to store lunch (for small eaters, I guess). **UPDATE**: I found a forum post with a picture...