Do I need this? - Wrist Twisters
 
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post #1 of 28 Old 07-05-2011, 12:07 PM Thread Starter
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Do I need this?

Sorry if this is a dumb, common seance question, but what is this round tubular can thing that is under my 919? I've been looking at the 919's here and very few (if any) of you have it... There are hoses that go into and out of it. What is it and do I need it? Or should I just leave it alone and quit being "OCD"...
Photo0441.jpg

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post #2 of 28 Old 07-05-2011, 12:15 PM
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I believe that is an emissions control device required for California models.
I also believe it can be removed. I am positive others with the proper knowledge will chime in here pretty quickly.

https://www.wristtwisters.com/forums/...ners-1209.html

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post #3 of 28 Old 07-05-2011, 12:16 PM
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it's the cali emissions crap you're looking at. my first suggestion is to read the stickies on how to remove it and then remove it! you'll be glad when you get rid of it.

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post #4 of 28 Old 07-05-2011, 12:58 PM
just send it.
 
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I believe that's the rotator splint. Helps keep the oxidation levels in check while at high RPMs.



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post #5 of 28 Old 07-05-2011, 01:06 PM
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It called the Cali Afterbirth. Get rid of it.

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post #6 of 28 Old 07-05-2011, 01:22 PM
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It all comes right off and nobody will ever know


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post #7 of 28 Old 07-05-2011, 01:26 PM
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post #8 of 28 Old 07-05-2011, 02:21 PM Thread Starter
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Thanks for the Pic voodooridr! do you just pull those peaces off or does anything need to be re-routed or plugged or anything?

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post #9 of 28 Old 07-05-2011, 02:24 PM
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pull everything up to the vacuum tee at the throttle bodies, cap the fitting.
You'll need to extend the tank vent hose, just let it hang down with the battery vent hose.


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post #10 of 28 Old 07-05-2011, 02:30 PM
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Fill it with magnets and you will never have to wait at another red light

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post #11 of 28 Old 07-05-2011, 03:39 PM
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Everyone (or pretty much everyone) on this forum talks as if the charcoal canister is the spawn of Lucifer and its removal (the equivalent of an exorcism) is essential for better luck while riding. Or more commonly it's ugly, and since we all know ugly slows you down ... for some reason ... get that bastard out of there!

Hold on just a minute!

It serves a couple functions that are if not essential, then very useful.

First, it traps and holds evaporitive emissions from the fuel tank, then reintroduces the hydrocarbons back into the intake tract to be used to produce power. The ECU compensates for the extra Hc by altering the injection duration very slightly.

Second, it is an excellent barrier against water entering the tank via the atmosphere or during a heavy rain: very useful in humid or rainy climates. You're on your own at gas stations.

A minor third advantage is the filler cap is not vented. "So what!" I hear many say. The "what" is a matter of safety. Many times when racing, especially when the tank is closer to empty than full, a sudden maneuver will slosh the fuel, and a stream of vapors will emit from the cap ... right into your helmet if you are in a tuck. Not very pleasant, and distracting if it makes your eyes water, as it has to me a few times. Additionally, a friend dropped by for a visit in the morning, placed her helmet on the tank over the cap, and the fumes from the warming air / fuel in the tank attacked the EPS foam liner of the helmet. When she went to put it on several hours later it had gained about a size and a half, and, of course, it smelled gawdawful. Scratch one very expensive helmet.

One last point -- it weighs, what? A pound and a half or so? Whoopee, and since the weight is carried below the CG of the bike it lowers the polar moment a tiny amount, resulting in an infinitesimally quicker turn in to corners. Did I mention it was a tiny difference? Good.

My advice? Leave it where it is and know you're being environmentally conscious while having fun / running an errand / whatever.

Rob

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On the other hand, if it has not been done never assume it is impossible to do it.
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post #12 of 28 Old 07-05-2011, 03:54 PM
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post #13 of 28 Old 07-05-2011, 04:21 PM
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As Lewis Black would say: " Light that sob up and throw it at my head !"

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post #14 of 28 Old 07-05-2011, 04:29 PM
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thats just your muffler bearing.

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post #15 of 28 Old 07-05-2011, 04:57 PM
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i removed mine... sole reason... it was ugly.... the tank STILL vents down the tube away from the rider by the right foot peg... not up near the gas cap. and i never ride in the rain... because well... its so cal. haha.


check my thread here on its removal.

https://www.wristtwisters.com/forums/...ter-24571.html

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post #16 of 28 Old 07-05-2011, 05:43 PM
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i ride in the rain daily during the fall/winter/spring, havent had any problems on 2 919's yet.

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post #17 of 28 Old 07-05-2011, 06:33 PM
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forget the charcoal can, get rid of the feelers!!!!


Photo0441.jpg

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post #18 of 28 Old 07-06-2011, 07:22 AM
just send it.
 
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^^ Huh... that's what is supposed to be there. The PO must have taken those off of my bike. I've heard that it's easy to touch the pegs down on the 919, but I haven't experienced it yet.



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post #19 of 28 Old 07-06-2011, 12:17 PM Thread Starter
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haha do they just unscrew? (I'd check but its around 100* out with 60%+ humidity )

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post #20 of 28 Old 07-06-2011, 01:43 PM
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yeah. they just unscrew

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post #21 of 28 Old 07-06-2011, 01:51 PM Thread Starter
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Nice! I'll do that than!

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post #22 of 28 Old 07-06-2011, 01:55 PM
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Here's a question: Does that cali-emissions help with the exhaust stink? Might be another reason to keep it on if it does...

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post #23 of 28 Old 07-06-2011, 02:00 PM
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Nope


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post #24 of 28 Old 07-06-2011, 06:08 PM
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Quote:
Originally Posted by andrewebay1 View Post
Here's a question: Does that cali-emissions help with the exhaust stink? Might be another reason to keep it on if it does...
not the evap can... all it does is store any fumes from the tank and puts them down the throat of the engine when the bike is on.... the cat in the y pipe MIGHT help but even then i dont think a catalytic converter gets rid of the oder causing stuff in exhausts.

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post #25 of 28 Old 07-07-2011, 01:25 AM
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I thought it was the FLUX CAPACITOR

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post #26 of 28 Old 07-07-2011, 01:38 AM
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Quote:
Originally Posted by nd4spdbh View Post
not the evap can... all it does is store any fumes from the tank and puts them down the throat of the engine when the bike is on.... the cat in the y pipe MIGHT help but even then i dont think a catalytic converter gets rid of the oder causing stuff in exhausts.
Gotcha! Thanks for the explanation.

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post #27 of 28 Old 07-07-2011, 04:19 PM Thread Starter
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Quote:
Originally Posted by woodyeee View Post
I thought it was the FLUX CAPACITOR

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post #28 of 28 Old 07-07-2011, 04:48 PM
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Quote:
Originally Posted by boogunoogun View Post
forget the charcoal can, get rid of the feelers!!!!


Attachment 17585
agreed!

I had only touched feelers a few times but i ditched them anyways because the cuffs of my work pants would catch on them which was a royal pain in the a$$

2003 Honda Shadow 750 ACE (Sold)
2003 Honda 919
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