'08 CA Charcoal Canister

[TahoeBound]

Anybody removed this? That thing's begging to be taken off sitting in the front cowl like it does - it is a maintenance pain in the rear. Wondering if there's any problem just pulling it off and venting (or plugging)??

 

[ynotride]

It can be done and there is a nice thread with pictures somewhere expalining how to do it. I cant for the life of me find that thread. I want to do it to eliminate the popping on decel noise that was being talked about in an ealrier thread today. If I find it I will let you know.

 

[ynotride]

Found it on page 6 in technical discussions. It was created by Wicked Webby. it says guide to removing air induction. I havent figured out how to paste a link from the forum yet :blink:

 

[Fred W]

Anybody removed this? That thing's begging to be taken off sitting in the front cowl like it does - it is a maintenance pain in the rear. Wondering if there's any problem just pulling it off and venting (or plugging)??

Ummmm. You are in Cali. If they find you have removed the cannister (evaporate emissions system) you will be in big doo-doo.

 

[Hit the Road Jack]

The charcoal canister has nothing to do with the performance of the engine. It merely captures the fuel vapors from the gas tank so that they don't pollute.

Every car built for the last twenty something years, in all states, has one too. Leave it alone, I say.

My 2 cents worth.

 

[ynotride]

Ummmm. You are in Cali. If they find you have removed the cannister (evaporate emissions system) you will be in big doo-doo.

For now we are ok but if they ever decide to start smog testing bikes we would have a problem. I will keep the parts I take off in case that happens and just throw them back on if needed. No different then what I do on my dirt bikes and so far it hasnt been a problem.

 

[ynotride]

The charcoal canister has nothing to do with the performance of the engine. It merely captures the fuel vapors from the gas tank so that they don't pollute.
Every car built for the last twenty something years, in all states, has one too. Leave it alone, I say.

My 2 cents worth.

I think I am confusing two parts here. I want to remove the air induction crap under my tank that makes the TBS a pain in the arse. I have not found a canister but havent really looked for one either. I just figured they were one in the same.

 

[TahoeBound]

The charcoal canister has nothing to do with the performance of the engine. It merely captures the fuel vapors from the gas tank so that they don't pollute.
Every car built for the last twenty something years, in all states, has one too. Leave it alone, I say.

My 2 cents worth.

I think I am confusing two parts here. I want to remove the air induction crap under my tank that makes the TBS a pain in the arse. I have not found a canister but havent really looked for one either. I just figured they were one in the same.

Pull your left & right fairings and you'll see! Its located behind/inside the lower cowling behind the front tire. I have no concern in regards to better performance, simply for ease of pulling the fairings. Yes, and the induction is also a pain to do maintenance. The '08 is a nice improvement, but not to happy with those two things...make my life easier not harder. I suppose I could go back to my beloved '04 and fry my nards But man, I had that thing set up & now I appreciate it even more...

 

[rydmohr]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

 

[Fairlaner]

The charcoal canister has nothing to do with the performance of the engine. It merely captures the fuel vapors from the gas tank so that they don't pollute.
Every car built for the last twenty something years, in all states, has one too. Leave it alone, I say.

My 2 cents worth.

I think I am confusing two parts here. I want to remove the air induction crap under my tank that makes the TBS a pain in the arse. I have not found a canister but havent really looked for one either. I just figured they were one in the same.

Dan do you have the needed covers for this?

I have a set if you need them.

R

 

[ynotride]

Dan do you have the needed covers for this?
I have a set if you need them.

R

No but I I will take them. This thread is two years old and I never did get around to taking anything off. I didnt have my Two Bros pipes back then and have grown to like the rumble and pop on decel.

Thanks

 

[n1acguy]

I left my canister in place, but let it vent like a 49 state bike. This is after the rollover valve began sticking and gave me grief.

I'll bet that Yamaha didn't plan on ethanol in fuel when they designed this plastic check valve they call the rollover valve. When it starts sticking, it has tendency to dump condensed fuel all at once rather than just vapor.

 

[n1acguy]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

I made notes!

I took hose #5 (from tank to the top of the rollover valve) and disconnected it at the top of the rollover valve to let it vent.

Then I removed hose #4 (tank to canister direct) from the canister and plugged it. The canister, although still there, is now out of the picture.

The only difference between doing this and the 49 state version is that the vent hose is terminating behind the fairing underneath the radiator (still at the bottom) instead of down through the center of the bike. The overflow hose exits at the same place on both models and there isn't enough vapor exiting the vent hose for there to be a problem with the different vent hose routings. The 49 state routing tees the 2 hoses together.

Also, the 49 state version either doesn't have the ports in the bottom of the #1 & #4 throttle bodies, or they are plugged. Doesn't matter because the throttle body ports are plugged when the # 5 hose is plugged so the throttle bodies won't suck air through the ports.

If you really wanted to you could either add the T, or reroute the vent hose next to the overflow hose, but I don't see the point.

 

[johnny80s]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

I made notes!

I took hose #5 (from tank to the top of the rollover valve) and disconnected it at the top of the rollover valve to let it vent.

Then I removed hose #4 (tank to canister direct) from the canister and plugged it. The canister, although still there, is now out of the picture.

The only difference between doing this and the 49 state version is that the vent hose is terminating behind the fairing underneath the radiator (still at the bottom) instead of down through the center of the bike. The overflow hose exits at the same place on both models and there isn't enough vapor exiting the vent hose for there to be a problem with the different vent hose routings. The 49 state routing tees the 2 hoses together.

Also, the 49 state version either doesn't have the ports in the bottom of the #1 & #4 throttle bodies, or they are plugged. Doesn't matter because the throttle body ports are plugged when the # 5 hose is plugged so the throttle bodies won't suck air through the ports.

If you really wanted to you could either add the T, or reroute the vent hose next to the overflow hose, but I don't see the point.

How do you what number the hoses are? Are you referring to a diagram in the Repair Manual? Thanks for the info.

 

[rydmohr]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

I made notes!

I took hose #5 (from tank to the top of the rollover valve) and disconnected it at the top of the rollover valve to let it vent.

Then I removed hose #4 (tank to canister direct) from the canister and plugged it. The canister, although still there, is now out of the picture.

The only difference between doing this and the 49 state version is that the vent hose is terminating behind the fairing underneath the radiator (still at the bottom) instead of down through the center of the bike. The overflow hose exits at the same place on both models and there isn't enough vapor exiting the vent hose for there to be a problem with the different vent hose routings. The 49 state routing tees the 2 hoses together.

Also, the 49 state version either doesn't have the ports in the bottom of the #1 & #4 throttle bodies, or they are plugged. Doesn't matter because the throttle body ports are plugged when the # 5 hose is plugged so the throttle bodies won't suck air through the ports.

If you really wanted to you could either add the T, or reroute the vent hose next to the overflow hose, but I don't see the point.

Am planning to add the tee on my 07 ca, just cut the hoses above the leftside crankcase cover. Your post has me worried tho, sounds like I will be sucking some air into the throttle bodies. Is that why there is a check valve on the canister? Should I be pluging one hose and running the other thru the belly pan? Or plugging the throttle bodies? Or replacing the check valve above the tee? I did find a diagram in this post however maybe someone could shed some light on this.link

 

[n1acguy]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

I made notes!

I took hose #5 (from tank to the top of the rollover valve) and disconnected it at the top of the rollover valve to let it vent.

Then I removed hose #4 (tank to canister direct) from the canister and plugged it. The canister, although still there, is now out of the picture.

The only difference between doing this and the 49 state version is that the vent hose is terminating behind the fairing underneath the radiator (still at the bottom) instead of down through the center of the bike. The overflow hose exits at the same place on both models and there isn't enough vapor exiting the vent hose for there to be a problem with the different vent hose routings. The 49 state routing tees the 2 hoses together.

Also, the 49 state version either doesn't have the ports in the bottom of the #1 & #4 throttle bodies, or they are plugged. Doesn't matter because the throttle body ports are plugged when the # 5 hose is plugged so the throttle bodies won't suck air through the ports.

If you really wanted to you could either add the T, or reroute the vent hose next to the overflow hose, but I don't see the point.

How do you what number the hoses are? Are you referring to a diagram in the Repair Manual? Thanks for the info.

Yes, I was referring to the diagram in the shop manual, but even if you don't have it it's really pretty simple.

There are only 2 hoses that run down to the canister. The one that goes to the top of the rollover valve is the one you want to plug. Plugging this ensures that the throttle bodies won't suck air. The other hose that goes to the canister direct, is just disconnected and allowed to vent. I used a wire tie to keep it in place.

 

[n1acguy]

Is it just me and my computer disfunction? I cannot find a write up about removing the charcoal canister. Maybe it's just so easy no write up is necessary? Like unplug the in and out hoses and connect togather. A little help please. Thanks

I made notes!

I took hose #5 (from tank to the top of the rollover valve) and disconnected it at the top of the rollover valve to let it vent.

Then I removed hose #4 (tank to canister direct) from the canister and plugged it. The canister, although still there, is now out of the picture.

The only difference between doing this and the 49 state version is that the vent hose is terminating behind the fairing underneath the radiator (still at the bottom) instead of down through the center of the bike. The overflow hose exits at the same place on both models and there isn't enough vapor exiting the vent hose for there to be a problem with the different vent hose routings. The 49 state routing tees the 2 hoses together.

Also, the 49 state version either doesn't have the ports in the bottom of the #1 & #4 throttle bodies, or they are plugged. Doesn't matter because the throttle body ports are plugged when the # 5 hose is plugged so the throttle bodies won't suck air through the ports.

If you really wanted to you could either add the T, or reroute the vent hose next to the overflow hose, but I don't see the point.

Am planning to add the tee on my 07 ca, just cut the hoses above the leftside crankcase cover. Your post has me worried tho, sounds like I will be sucking some air into the throttle bodies. Is that why there is a check valve on the canister? Should I be pluging one hose and running the other thru the belly pan? Or plugging the throttle bodies? Or replacing the check valve above the tee? I did find a diagram in this post however maybe someone could shed some light on this.link

In that post the diagram listed is identical to what I have, however the hose item numbers are different, probably because it's from an older manual.

So, in that diagram hose # 47 is removed from the rollover valve and plugged, and hose # 48 is disconnected and allowed to vent. Only difference is that you have 2 completely separate hoses, one for the vent and one for the overflow. You don't need the T. The method I described accomplishes the same thing.

 

[kaitsdad]

Post #8

 

[rydmohr]

Ok, so can someone explain what the "rollover valve" is and what it does? :huh: