Has anyone removed there Charcoal Canister?

I know I have the tank weight specs documented somewhere have to dig it all up but remember the carbon tank was almost half the weight of the aluminum.

Mick1976 said:

I know I have the tank weight specs documented somewhere have to dig it all up but remember the carbon tank was almost half the weight of the aluminum.

Click to expand...

Thanks, let me know if you get a chance
There’s one on eBay fairly cheap but kind of beat up but It can make a nice project to make it a bit nicer for my track bike
But only if I can save at least 2-2.5 lbs
But somehow I doubt it would be that much lighter

Has anyone removed the charcoal canister from the v4 yet?
By the way, what is its purpose?

I think it serves 2 purposes

1 it helps keep those nasty lol gas fumes outta the air. Tank has to have a vent, right?

2 it’s somewhere for fuel to go if you were to fill tank all the way to the top and park in the sun without riding it a ways first or in the event of a overfill

Our government does not want any hazardous liquid to hit the ground anywhere’s but are ok w fracking : ). My boss got fined like 20k cuz the hot tank leaked caustic on to the dirt next to rr tracks

Evap canister also vents vaporized vented fuel into the throttle bodies when the valve controlling the canister opens up. There are reports of it causing a rougher running engine than without, harder starting when it gets saturated, and reports of the canister charcoal dust ending up in the tank.

It is like the catalytic converter, there for reduced emissions purposes, which almost always hurts performance.

I suspect it makes no measurable difference if it is on or off, but I prefer to remove it.

The challenge is getting access to it on the 950.

Will try and report back.

I had my charcoal canister removed on my V2, but it was done by DucShop so I don’t know the specifics of what was involved. I did it because of starting issues after long rides (I’m probably guilty of over filling the tank too). DucShop said it was full of gas when they removed it.
I’ve not taken it out long enough to confirm this has fixed the issue.

Yeah, started digging at it this AM. No way to get it removed intact without removing the entire airbox, which is more work than I am willing to undergo at this time.

I removed the rubber shock mount surrounding the canister, removed the lower drain tube.

Next I will cut the intake from tank vent tube and cut the outlet to throttle body line.

After that I have too see if it can be finessed through the frame or the canister may have to be dissected for removal.

Alternatively, I could just cut the line coming out of the canister, plug it with a bolt, and join the vent line to the drain line out the bottom. The canister will no longer be influencing the fuel intake , and then I can just leave the actual canister in place.

Mission accomplished, sort of.

I removed the electronic purge valve on the right side of the bike which controls the flow of fuel vapors from the evap canister.

I cut the hose upstream of the sensor and plugged it with a screw. Now the throttle body ports from the evap system are sealed.

The canister itself cannot be removed without removing the entire airbox or slicing up the actual canister. I decided to leave it where it is and cut all the hoses leading into and out of it. It is along for the ride but has nothing going in or out of it now. Will remove it someday.

The vent/evap hose from the tank (right side) is 1/4 inch ID so I ordered some additional thin walled (stock is heavy and thick walled) rubber tubing which I will connect with a Y junction to the overflow hose (left side of the tank) and run out the bottom of the bike.

Final piece of the job is to attach the smartmoto purge valve eliminator plug to avoid any error codes.

And its gone...