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Post by bobthetechguy on Feb 26, 2014 22:35:30 GMT -6
And now my bike bogs/stalls/cuts out when I go from 0 throttle to dumping full throttle, it also seems to miss a bit. Its a small black hose coming off the oil dipstick side of the scooter that leads to the canister for emissions. I temporally tied the hose in a knot, but was wondering if anyone had a diagram of the hoses so I could just reconnect it and be on my merry way?
Thanks in advance everyone, +alleypoop
Edit: its a peace motorsports dash 150cc scooter.
I can take some pictures if it would help
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Post by Alleyoop on Feb 26, 2014 23:03:09 GMT -6
That sounds like the VACUUM HOSE so it may have come off either the INTAKE MANIFOLD CONNECTOR or a "Y" or a "T" or it may have come off the CANISTER. That is why it is bogging and stalling it is loosing vacuum. If you cannot find where it goes take a pic of the canister and the hose and around where the INTAKE MANIFOLD: Alleyoop In this pic that vacuum hose goes to the petcock as you can see he has the other Vacuum hose on the other side of the intake manifold folded over and zip tied. But just to show you how they go Vacuum to the PETCOCK and IF you have some emissions which you apparently do a VACUUM LINE also goes to the canister.  |
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Post by bobthetechguy on Feb 27, 2014 13:38:14 GMT -6
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Post by Alleyoop on Feb 27, 2014 13:56:17 GMT -6
Ok this canister the two open connectors ARE SUPPOSED TO BE OPEN One is a drain the other is a vent Actually you can see the writing on them, the smaller is nipple is the DRAIN and the bigger nipple is the AIR VENT. But on the other side of that Canister SHOULD be a VACUUM HOSE connected to the VERY TOP CONNECTOR. With two hoses connected to it below that. One hose should be coming from your gas tank and the other hose connects to your AIR BOX or AIR FILTER TUBING connecting to the carb. That Canister is your EVAP system GAS TANK VENT and TO TRAP FUMES and feed the fumes back into the carb to be reburned. Alleyoop   |
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Post by bobthetechguy on Feb 27, 2014 14:09:35 GMT -6
Sorry if im being renduandant m.imgur.com/ZCJhC6Q this hose im holding in my hand is the one im concerned about, i cant seem to find where it goes |
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Post by Alleyoop on Feb 27, 2014 14:10:34 GMT -6
Sorry Where is it attached to on the other end that will tell all.
Alleyoop
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Post by kz1000st on Feb 28, 2014 5:02:21 GMT -6
I'm betting that about 6 inches from the end of that hose is a small canister. My Bashan is a Peace scooter. The canister is a one way valve for future exhaust emission standards. Mine went bad and did just what yours is doing. Just plug the hose and forget about it.
He has a PAIR system on it.
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Post by bobthetechguy on Feb 28, 2014 14:19:20 GMT -6
Sorry Where is it attached to on the other end that will tell all. Alleyoop Its the bottom hose in that picture closest to the frame |
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Post by Alleyoop on Feb 28, 2014 14:50:39 GMT -6
Bob, I know that, the question to you is WHERE IS THE OTHER END OF that hose connected to. Knowing what it is connected to I can tell you what it is for and where the open end should go. Or you can take a picture of the other end of that hose. There are several emissions that a scoot can come with and all of them require VACUUM to open and close a valve. Alleyoop Here are the emissions a scoot may have: scooterdoc.proboards.com/thread/9153/emissions-on-scoots?page=1&scrollTo=73810 |
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Post by bobthetechguy on Mar 1, 2014 14:52:53 GMT -6
Bob, I know that, the question to you is WHERE IS THE OTHER END OF that hose connected to. Knowing what it is connected to I can tell you what it is for and where the open end should go. Or you can take a picture of the other end of that hose. There are several emissions that a scoot can come with and all of them require VACUUM to open and close a valve. Alleyoop Here are the emissions a scoot may have: scooterdoc.proboards.com/thread/9153/emissions-on-scoots?page=1&scrollTo=73810 Maybe this will help, |
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Post by Alleyoop on Mar 1, 2014 15:16:12 GMT -6
That is a Vacuum hose coming from the canister so it needs vacuum. Look for a "Y" or a "T" connector that is missing a hose attached to it. So the reason it is acting up on you is it loosing vacuum because of the hose missing on the connecter. Alleyoop  |
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Post by bobthetechguy on Mar 5, 2014 4:37:10 GMT -6
Still havent figured out where thehose goes, unless it connects to that bigger one that looks like a drain hose.
My scooter bogs and misses when taking a hard right turn, but doesnt seem to when leaning left.
Hopefully this weekend will be nice, who here is closest to nw arkansas?
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Post by Bashan on Mar 5, 2014 6:03:36 GMT -6
It is what the guys said, the vacuum hose to the PAIR module. It is an emissions system that theoretically injects fresh air into the exhaust to help burn unspent fuel. The side you are holding hooks onto a vacuum source such as the intake manifold or one of the vacuum nipples by the carb. If your bike is running OK then the vacuum source has been properly capped. If your bike is running horrible the vacuum source is open and must be plugged. Here is a diagram for removing it:
It is a passive system, it will not affect performance unless the vacuum system is compromised. I remove them because they are in the way and junk up the engine bay.
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Post by Bashan on Mar 5, 2014 22:24:10 GMT -6
I wanted to revisit this because I think there is still some confusion. At least by the PMs I got I think there is. As Alley said, there are two types of emission systems on scooters. Alley, I'm not trying to step on your posts I just want to put the stuff I have out there in the sequence that I have it in. First, most bikes today will have the vapor recovery system. It pulls vapors off of the gas tank into a charcoal canister. It looks like this:
I have a problem with these systems because the check valve often plugs up, no vent, no running scooter. Remove like this:
Second there is the PAIR system. Pulsed Air Intake Reburn. This pic is from your image service:
That is a PAIR canister and that vacuum line actuates a valve that pulses air into the exhaust to enhance the combustion of unspent fuel. One of those large hoses runs to a reed valve that prevents hot gases from flowing back into the system. The other hose is a source of confusion in that it is simply a fresh air inlet but folks think it should be connected to something. It just hangs there and brings fresh air in.
The main thing with removing these systems is to plug the vacuum sources. Other than that, they are just in the way.
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Post by bobthetechguy on Mar 9, 2014 15:13:28 GMT -6
So where does that vac line that you highlited in my pic need to go? Ive looked all over and cant seem to figure it out. Im about to just pull all the plastics off to get a better look at this scoot.
It runs great 90% of the time, just sometimes seems to loose power uphill, and will stall when dumping full throttle turning right at an intersection, will cut out and misfire a bit.
The bike still can reach 9,000 rpm when at max crusing downhill and runs smooth.
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..BAD TO THE BONE..
