Fri Jun 19, 2009 3:51 pm

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Fri Jun 19, 2009 3:51 pm linkquote
In the shop yesterday asked the mechanic to show me where the evap canister is so I could remove later. He thought it was same as 250 but looked and it wasn't there. It was late so did not take time to trace hoses and find it.

Can someone tell me where it is located on MP3 400 to save a long look pulling panels off chasing hoses?

Last edited by Fuzzy on Wed Jul 08, 2009 4:09 pm; edited 1 time in total
Fri Jun 19, 2009 5:38 pm

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mp3 250 & MP3 400
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mp3 250 & MP3 400
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Fri Jun 19, 2009 5:38 pm linkquote
8)

Fuzzy

The evap can is under the first section in the under seat compartment. The cig. lighter plug is in the same compartment.

R.B.
Fri Jun 19, 2009 6:04 pm

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MP3 250
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Posts: 999
Location: San Carlos CA
 
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MP3 250
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Location: San Carlos CA
Fri Jun 19, 2009 6:04 pm linkquote
Re: Where is Evap Canister on 400
Fuzzy wrote:
In the shop yesterday asked the mechanic to show me where the evap canister is so I could remove later. He thought it was same as 250 but looked and it wasn't there. It was late so did not take time to trace hoses and find it.

Can someone tell me where it is located on MP3 400 to save a long look pulling panels off chasing hoses?
So why do want to remove it?
Sat Jun 20, 2009 2:21 pm

Veni, Vidi, Posti
. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Sat Jun 20, 2009 2:21 pm linkquote
Several threads here and on general forum of problems created with it if the gas tank is overfilled which I am prone to do and can easlily happen by accident if the automatic shutoff fails. I was recently at a rural station and the shutoff did not work. The attendent stated that is why the sign was there to not leave it unattended. My mechanic says he has worked on multiple Piaggio products with the problem but they are not allowed to remove per direction from Piaggio. As I understand it is on to meet California emissions and I live a long way from there.
Sat Jun 20, 2009 2:22 pm

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Sat Jun 20, 2009 2:22 pm linkquote
reno bob wrote:
8)

Fuzzy

The evap can is under the first section in the under seat compartment. The cig. lighter plug is in the same compartment.

R.B.
Thanks Bob. Now I can find and take care of it.
Sun Jun 21, 2009 11:42 am

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Sun Jun 21, 2009 11:42 am linkquote
Found it. Now I know why others commented on how much space was made available. I just pictured something much smaller.
Sun Jun 21, 2009 11:59 am

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MP3 250
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Location: San Carlos CA
 
Addicted
MP3 250
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Sun Jun 21, 2009 11:59 am linkquote
Fuzzy wrote:
Several threads here and on general forum of problems created with it if the gas tank is overfilled which I am prone to do and can easlily happen by accident if the automatic shutoff fails. I was recently at a rural station and the shutoff did not work. The attendent stated that is why the sign was there to not leave it unattended. My mechanic says he has worked on multiple Piaggio products with the problem but they are not allowed to remove per direction from Piaggio. As I understand it is on to meet California emissions and I live a long way from there.
Okay, consider this. On "Other Piaggio Products" the fuel tank, filler opening and vent are above every other component of the fuel the system. On the MP3 the fuel tank, tank vent, and filler cap are the lowest point (excep fuel pump which is in the tank). Look at the location of the fuel cap on your mp3 and the location of the evap canister now that you know where it is. Do you really think fuel is going to run uphill? If that automatic shut off fails, fuel is going to run out of the tank opening and all over the ground and not one drop is going to make it all the UP the evap canister. When I read I the overfill diagnoise on an MP3 thread I think "two wheel scooter logic does not apply in this case" By the way my Aux tank feeds directly into the vent line of the main tank. The vent of my Aux tank plumbs into the original vent system of the main tank. If I overfill my aux tank I can duplicate the dreaded overfill problem.
Sun Jun 21, 2009 12:00 pm

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Red MP3 500 RUBY DRAGON
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Posts: 2626
Location: Northern CA
 
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Red MP3 500 RUBY DRAGON
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Location: Northern CA
Sun Jun 21, 2009 12:00 pm linkquote
Fuzzy wrote:
Several threads here and on general forum of problems created with it if the gas tank is overfilled which I am prone to do and can easlily happen by accident if the automatic shutoff fails. I was recently at a rural station and the shutoff did not work. The attendent stated that is why the sign was there to not leave it unattended. My mechanic says he has worked on multiple Piaggio products with the problem but they are not allowed to remove per direction from Piaggio. As I understand it is on to meet California emissions and I live a long way from there.
I'm in Ca and if it becomes a problem it is gone!
Sun Jun 21, 2009 12:37 pm

Veni, Vidi, Posti
. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
Joined: 02 Jun 2008
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Sun Jun 21, 2009 12:37 pm linkquote
Maroy wrote:
Fuzzy wrote:
Several threads here and on general forum of problems created with it if the gas tank is overfilled which I am prone to do and can easlily happen by accident if the automatic shutoff fails. I was recently at a rural station and the shutoff did not work. The attendent stated that is why the sign was there to not leave it unattended. My mechanic says he has worked on multiple Piaggio products with the problem but they are not allowed to remove per direction from Piaggio. As I understand it is on to meet California emissions and I live a long way from there.
Okay, consider this. On "Other Piaggio Products" the fuel tank, filler opening and vent are above every other component of the fuel the system. On the MP3 the fuel tank, tank vent, and filler cap are the lowest point (excep fuel pump which is in the tank). Look at the location of the fuel cap on your mp3 and the location of the evap canister now that you know where it is. Do you really think fuel is going to run uphill? If that automatic shut off fails, fuel is going to run out of the tank opening and all over the ground and not one drop is going to make it all the UP the evap canister. When I read I the overfill diagnoise on an MP3 thread I think "two wheel scooter logic does not apply in this case" By the way my Aux tank feeds directly into the vent line of the main tank. The vent of my Aux tank plumbs into the original vent system of the main tank. If I overfill my aux tank I can duplicate the dreaded overfill problem.
No argument with design difference from other scoots. Others with MP3s have had problems and solved them with removal of the canister. I am inclined to believe their reports. Here is one:
Quote:
My MP3 500 has been trying to stall the past week or two and got to the point it would stall sometimes. I looked at the plugs and they looked perfect.
I pulled the Evap Canister today and the thing is running like new. Get rid of that POS.

Wayne B
Wed Jul 08, 2009 3:57 pm

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Wed Jul 08, 2009 3:57 pm linkquote
I took it out. Everytime I opend the gas cap it was either under a vacumn or pressure neither of which should be the case. The clincher was hearing in Chattanooga that someone was nearly hit by the flying gas cap when they removed it and the built up pressure blew it off when loosened. It does open up significant space under the seat. The canister is 2" x 4" x 6" with extra room around it. After removing the canister and clamp that holds it I taped over the holes for the hoses Then I cut the cover leaving just the portion that holds the 12v outlet. I still need to put some silicone sealant under the remaining piece of cover and around the cup the bottom that the hoses disappeared into.

The hesitation at low speed seems to be improved. It is definitely more consistent as prior to removal it could be decidely different from time to time apparently affected by pressure or vacumn in the tank.

Pics:


Canister removed. Quarter on it for size reference.


Space created removing canister.

Thu Jul 09, 2009 8:15 am

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2009 MP3 400
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Location: Saratoga, N.Y.
 
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2009 MP3 400
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Thu Jul 09, 2009 8:15 am linkquote
What did you do with the hoses on the bike after removing the canister? Plug them? Connect them to each other?
Thu Jul 09, 2009 9:50 am

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Thu Jul 09, 2009 9:50 am linkquote
I hope you did plug the one going to the intake. If not do it ASAP.

Wayne B
Thu Jul 09, 2009 10:07 am

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Thu Jul 09, 2009 10:07 am linkquote
The one to the intake is plugged and the other open as a free flowing vent.
Thu Jul 09, 2009 10:25 am

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Thu Jul 09, 2009 10:25 am linkquote
Good

Wayne
Fri Jul 10, 2009 8:44 am

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2009 MP3 400
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2009 MP3 400
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Fri Jul 10, 2009 8:44 am linkquote
Which is which? I think I want to do this too.
Fri Jul 10, 2009 9:16 am

Molto Verboso
Joined: 10 Feb 2008
Posts: 1104
Location: Midwest
 
Molto Verboso
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Fri Jul 10, 2009 9:16 am linkquote
Iv'e always heard removing the canister will help a scooter breath better.I guess the smog crap restricts the breathing.Makes sense.I dont know the details,just saying.
Fri Jul 10, 2009 12:29 pm

Hooked
Piaggio MP3 500ie
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Posts: 100
Location: Lehigh Valley, PA
 
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Piaggio MP3 500ie
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Fri Jul 10, 2009 12:29 pm linkquote
Just filled up yesterday. First time in a little while. Went to pull the gas cap off and the darn thing popped right off and hit my hand.

Now if I do this on the 500, that should alleviate the pressure problem, right?
Fri Jul 10, 2009 3:25 pm

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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Fri Jul 10, 2009 3:25 pm linkquote
Should do. The fuel is pressurised from tank to injectors, it shouldn't be pressurised in the tank or have a negative pressure.

I can see how these controls can work on cars with large tanks and long filler-pipes - they seem totally counter-productive on PTWs.
Wed Jul 15, 2009 11:56 am

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2009 MP3 400
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2009 MP3 400
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Wed Jul 15, 2009 11:56 am linkquote
Another plea for IDs on which tube is which. I can't find any reference to the canister in the owner's manual, service manual, or parts list.

Or will it be obvious when I pull the canister which hose connects to the intake and which goes to the ... ???
Fuzzy wrote:
The one to the intake is plugged and the other open as a free flowing vent.
Wed Jul 15, 2009 1:09 pm

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Wed Jul 15, 2009 1:09 pm linkquote
ramblerdan wrote:
Another plea for IDs on which tube is which. I can't find any reference to the canister in the owner's manual, service manual, or parts list.

Or will it be obvious when I pull the canister which hose connects to the intake and which goes to the ... ???
Fuzzy wrote:
The one to the intake is plugged and the other open as a free flowing vent.
You can find the roll over valve and the hose from it to the evap canister at the access at the back of the left rug (left being as sitting on the MP3.) Wth the access cover removed you can pull on the ends of the hose to find out which one it is at the evap canister. Bottom line I cut both hoses at the bottom of the canister prior to verifying where they went.

One caution is to be careful when disconnecting the plug to the 12V outlet to get the cover fully off the evap canister. If you let the cord drop down the tube you will have a fun time trying to get it back.

Sorry I didn't make it clearer earlier.
Tue Jul 21, 2009 6:29 am

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2009 MP3 400
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Tue Jul 21, 2009 6:29 am linkquote
Finally did this. Determining which hose is which was actually pretty easy: The fuel vent line reeked of petrol. I verified that the other line went to the intake with a vacuum gauge; it pulled a few inches with the engine running.

Plugged the intake line with a bolt, sealant, and hose clamp, though I might go back later and remove the hose from the rollover valve (easily reached from the side access cover) and cap the valve end. As for the fuel vent, I installed a tiny lawnmower fuel filter to keep dirt and insects from finding their way into the tank.

Love having the extra storage space!
⬆️    About 4 months elapsed between posts    ⬇️
Wed Dec 02, 2009 1:49 pm

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Posts: 245
Location: land of beer and cheese and rain
 
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2009 MP3 250
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Wed Dec 02, 2009 1:49 pm linkquote
so where is this do mabob in the 250?
Is it the reason there's a hump in the center of the pet carrier?
Never notice the 400/500 have no hump there.

pics please
⬆️    About 6 months elapsed between posts    ⬇️
Tue May 25, 2010 2:05 pm

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Piaggio MP3 400 - 2008
Joined: 17 Aug 2008
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Location: New York City
 
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Piaggio MP3 400 - 2008
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Tue May 25, 2010 2:05 pm linkquote
Fuzzy wrote:
One caution is to be careful when disconnecting the plug to the 12V outlet to get the cover fully off the evap canister. If you let the cord drop down the tube you will have a fun time trying to get it back.
Could you give a little guidance on how you disconnected the 12v outlet? On my 400 it seems to extend down under the chassis with no easy way to disconnect other than pulling it upwards - forcing it which would cause whatever connecting wires to whipsaw into total obscurity. Would I have to remove a panel?

I had to look at this quickly today because my garage doesn't allow wrenching, so apologies if I have overlooked something obvious.
Tue May 25, 2010 2:26 pm

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Tue May 25, 2010 2:26 pm linkquote
I was able to unscrew to get it without removing any side panels, just the panel it is mounted in covering the evap canister. With that loose there is some room to get at the connection. You don't want to drop the other end of the cord or you will remove a bunch or plastic to find the wire and get it back. Tie something to the wire while you do the work on evap so it doesn't slip
Tue May 25, 2010 11:11 pm

Molto Verboso
MP3 500, Honda PCX
Joined: 20 Jul 2008
Posts: 1123
Location: Dallas, TX
 
Molto Verboso
MP3 500, Honda PCX
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Location: Dallas, TX
Tue May 25, 2010 11:11 pm linkquote
Someone please tell me where it is on the 500. Thanks.
Wed May 26, 2010 2:47 am

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Veni, Vidi, Posti
. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Wed May 26, 2010 2:47 am linkquote
jerryw wrote:
Someone please tell me where it is on the 500. Thanks.
On the 500 it is to the side of the pet carrier where the 400 has the battery.
Wed May 26, 2010 3:21 am

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Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
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Location: Harriman, Tennessee, Tn
 
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Neutrino MP3 492.7 AK, 2013 Moto Guzzi Norge
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Wed May 26, 2010 3:21 am linkquote
jerryw wrote:
Someone please tell me where it is on the 500. Thanks.
right side just in front of the tool kit area. I believe there are 2 screws holding the cover on. Mine is still in as I have no issues thus far.
Wed May 26, 2010 6:44 am

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2009 MP3 400
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2009 MP3 400
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Wed May 26, 2010 6:44 am linkquote
On the 400, you can gently raise the socket enough to get a locking forceps on the wires. That will keep them from falling down in to the hole.
Thu May 27, 2010 5:29 pm

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Piaggio MP3 400 - 2008
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Location: New York City
 
Hooked
Piaggio MP3 400 - 2008
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Thu May 27, 2010 5:29 pm linkquote
I was able to take out the evap canister on my 400 without disconnecting any wires on the 12v outlet. I just pulled it up and out of the way. I cut down the plastic under the seat like Fuzzy did (not as neat a job though). I cut the hoses, then took out the little basketlike thing that was under the evap canister. I used strapping tape to tape up the holes in the "basket" so no small parts can roll in there and escape. Then I sealed it back in with gasket seal.

Performance is no better and I am still getting a vacuum when I remove the gas cap. I think I may have a stuck rollover valve, which I left on the hose to the gas tank. Before I go ahead and cut out the valve, is this a wise thing to do? If I crash will I be doused in gasoline from the hose with no valve?
Fri May 28, 2010 3:24 am

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Fri May 28, 2010 3:24 am linkquote
Turbojav wrote:
I was able to take out the evap canister on my 400 without disconnecting any wires on the 12v outlet. I just pulled it up and out of the way. I cut down the plastic under the seat like Fuzzy did (not as neat a job though). I cut the hoses, then took out the little basketlike thing that was under the evap canister. I used strapping tape to tape up the holes in the "basket" so no small parts can roll in there and escape. Then I sealed it back in with gasket seal.

Performance is no better and I am still getting a vacuum when I remove the gas cap. I think I may have a stuck rollover valve, which I left on the hose to the gas tank. Before I go ahead and cut out the valve, is this a wise thing to do? If I crash will I be doused in gasoline from the hose with no valve?
That was my situation. I don't have a roll over valve now.
Fri May 28, 2010 5:54 am

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Piaggio MP3 400 - 2008
Joined: 17 Aug 2008
Posts: 207
Location: New York City
 
Hooked
Piaggio MP3 400 - 2008
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Posts: 207
Location: New York City
Fri May 28, 2010 5:54 am linkquote
Is your performance better without the rollover valve? Do you worry that if the bike is dropped gas will spill out without the valve?
Fri May 28, 2010 1:01 pm

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Gilera Fuoco / BMW R850R
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Location: St Paul's Bay Malta
 
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Gilera Fuoco / BMW R850R
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Posts: 143
Location: St Paul's Bay Malta
Fri May 28, 2010 1:01 pm linkquote
I got curious about the evap cannister so I went to check mine out. I dont have one!!! Seems like the Gilera does not have it here in Europe!! Anyone knows about this???? I've got a 2007 model
Fri May 28, 2010 1:19 pm

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MP3 500
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Location: Ashburn, Va
 
Banned
MP3 500
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Fri May 28, 2010 1:19 pm linkquote
North American bikes only. No European bike have to have them.
Sat May 29, 2010 2:45 am

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. . 2008 Blue MP3 400. . di Peluria Orso .... 1993 Kawasaki Vulcan 500 ....... 2013 Honda NC700XD; 2017 Versys X300
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Sat May 29, 2010 2:45 am linkquote
Turbojav wrote:
Is your performance better without the rollover valve? Do you worry that if the bike is dropped gas will spill out without the valve?
No performance change, but no more pressure or vacumn in the gas tank. Not personally worried about the spill on a lay down. European MP3s do not have the valve.
Wed Jun 02, 2010 5:58 pm

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Piaggio MP3 400 - 2008
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Piaggio MP3 400 - 2008
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Wed Jun 02, 2010 5:58 pm linkquote
After some sage advice from JimC I've removed my rollover valve. No more vapor lock when I unscrew the gas cap. Less grundling at low speed too, although I might be imagining it.
Wed Jun 02, 2010 6:12 pm

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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
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Wed Jun 02, 2010 6:12 pm linkquote
Congrats - you're back to where the bike was designed to be in the first place.
⬆️    About 5 years elapsed between posts    ⬇️
Fri Nov 13, 2015 12:46 pm

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2016 BV350
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Hooked
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Fri Nov 13, 2015 12:46 pm linkquote
Turbojav wrote:
Fuzzy wrote:
One caution is to be careful when disconnecting the plug to the 12V outlet to get the cover fully off the evap canister. If you let the cord drop down the tube you will have a fun time trying to get it back.
Could you give a little guidance on how you disconnected the 12v outlet? On my 400 it seems to extend down under the chassis with no easy way to disconnect other than pulling it upwards - forcing it which would cause whatever connecting wires to whipsaw into total obscurity. Would I have to remove a panel?

I had to look at this quickly today because my garage doesn't allow wrenching, so apologies if I have overlooked something obvious.
I just did this but took a different approach.
Disconnecting it was a pain.

I used a silver marker and drew a curved cut line on the plastic where I wanted to keep the 12v lighter. I then wrapped a towel all the way around the bottom of it to catch debris and use a dremel cut wheel and just cut it in place. Took only a few minutes then I cleaned up the edge with a file and with the 1 screw attached it back in place.

Here are pics from a 250 evap mod...same concept
Since I already have it apart...evap canister gone

Last edited by Eakins on Sat Nov 14, 2015 7:20 pm; edited 2 times in total
Fri Nov 13, 2015 1:45 pm

Hooked
2016 BV350
Joined: 19 Feb 2015
Posts: 440
Location: Fort Collins, Colorado
 
Hooked
2016 BV350
Joined: 19 Feb 2015
Posts: 440
Location: Fort Collins, Colorado
Fri Nov 13, 2015 1:45 pm linkquote
Doing this now. No panel removed except the access ports.

-on the inside next to the battery box remove the 2 big screws and the overflow bottle bracket will drop down so it's easy to access the top and bottom hoses to that. i'm zip tie the attached wiring harness to the other harness for the fuses and tossing bracket & bottle. bracket weighs pound alone . geez.

-i marked the lower hose with a silver marker so I know. this is the line back to the gas tank.

-on the evap cansiter pull it to the left away from 12v socket and cut the exposed hose (closer to 12v) w/ a knife.

-then under on the left side service opening cut the other hose past the white round valve. i cut it as close to the plastic part as possible.

-remove the evap. can

-remove the center plastic part and look down in. A HUUUUGE bonus here is another place to look in when doing the valves.

-remove the evap bracket and replace the screws.

-now you can pull on the upper hose (back at the over flow bottle) that connected to the evap and pull it out completely. there is also a sheath that comes off.

-your gas tank over flow hose needs to be filtered or not and placed a good route down and away from the motor. mine is shoved down next to the body panel and the coolant hose so it would drip down ahead of the exhaust onto the lower tube frame area.

-you also need to plug the other line with the white round valve.

...so i'm thinking i might even open that storage area hole even more (leave out the lower plastic vent hose part completey) and get some black ABS sheet and use velcro to hold it in place as a floor. It will then come off fast and give a HUGE opening into the top of the motor for maintenance and checks.
Sat Nov 14, 2015 5:46 pm

Hooked
2016 BV350
Joined: 19 Feb 2015
Posts: 440
Location: Fort Collins, Colorado
 
Hooked
2016 BV350
Joined: 19 Feb 2015
Posts: 440
Location: Fort Collins, Colorado
Sat Nov 14, 2015 5:46 pm linkquote
Having a weird issue after do this mod.

Now when I turn on my mp3 it idles just fine but after 30 secs or so the engine light comes on. If I turn it off and then back on no light.
Light never comes on again during a ride. Not sure if it the light turns off by itself if I just start riding however.

No other changes except removing the evap, plugging the hose on the carb end and running the tank hose down near the side panel (un filtered).
ECU has the latest tune.

Any ideas???
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