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Post by jtron on Jul 22, 2015 18:05:52 GMT -5
Well I'm removing my air box for a uni, and I need some help with hoses and such. I'm not gona remove my charcoal canister until I get some vacuum caps and extra fuel filters, and I'm wondering if the hose that goes from my charcoal canister into the intake tube between the air box and carb can just go into open air for now, the vacuum line will still be connected. Doesn't that hose just return gas fumes into the intake? Would that be OK just to go to open air?
That's the only hose left, my valve cover vent is just zip tied to the frame w a filter on the end, and I'll probably do the same with the CVT vent.
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Post by jtron on Jul 22, 2015 18:50:21 GMT -5
Also, how would I go about removing my charcoal canister?
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Post by rcq92130 on Jul 22, 2015 19:05:55 GMT -5
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Post by jtron on Jul 22, 2015 19:21:27 GMT -5
Thanks, but im not worried about the pair system, that's another job for another day once I make or buy a block off plate. I'm just wondering about the vapor canister hose which I think vents vapor into the tube between airbox and carb. I just need to know if that can go to open air without messing anything up
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Post by JerryScript on Jul 22, 2015 20:54:56 GMT -5
Yes, but it's best to put a fuel filter on it and zip tie it up high on the frame.
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Post by florida on Jul 23, 2015 13:36:47 GMT -5
I just removed my pair system using that video as a guide and it neglects to tell you that you have to "put a vent on the fitting coming off the valve cover and run it to a point above the valve to release gases from valve head into the atmosphere."
Do this by getting at least a 12in piece of appropriate size tubing. I used a 1/4in inner diameter tube and covered the very end with a 2in square piece of swearshirt and secured it with a zip tie. Ive been running it this way for at least two months with no problems. It vents gasses very well. Theres no need for anything fancier coming off the valve cover fitting in the very front of your engine.
****did anyone notice that in the gy6 pair system removal video he puts a black rubber cap on the valve cover fitting? That is WRONG!
Could a few other members agree with me in this so the op can get this modification done hassle free?
The charcoal canister does absolutely nothing for performance. It is one piece of emissions equipment on a scooter that produces roughly 1/45 the amount of carbon footprint a car does. Sometimes people report tuning your scooter becomes easier after removing all of the pair system and plus the charcoal canister.
I recently did this to my scooter and found that its hard to figure out how to connect what to what by using google images or googling it. A member was kind enough to allow me to send h photoes from my phone and he tried to work with me. It was madness, but i now know how to hook it all up correctly.
Ill briefly explain where to start by connecting a hose to a part and what fitting on the scooter it should connect to.
Lets start by running a Vacumn Line. The air that is sucked into air filter is used to create a positive pressure in the gas tank so fuel is being pushed out and fed into carbuerator. Start by identifying a small 1/4 diameter by 3/4 inch fitting in front of the carbuerator. Its on the black piece of 45 degree tubing that runs from carburator and down into engine. You want to run a piece of tubing from there to the gas tank petcock located kn the bottom of the gas tank. My petock was on the gas tank and had two fittings, one above the other. I hooked the line coming from in front of carbuerator to the bottom fitting on the petcock thus creating a vacumn line. Your scooter may have a different petcock.
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Post by florida on Jul 23, 2015 13:54:33 GMT -5
Fit a gas line. Run it from gas tank petock to carbuerator. Fut a gas line to the top fitting on gas tank petock. About a few inches out guide the gas line ( or turn it) about a 45 degree angle so its now pointing to the non-exhaust side of the scooter.
Your scooter should have some brackets already to hang the hose in. Use them.
Run the hose for 12 inches paralel to the scooter. Turn the hose ( or guide it ) at a 45 degree angle so its facing down or now running towards the front of the scooter and then connect it to the fuel line fitting on your carburetor. You can google images of your model and brand carbuerator if you dint know which fitting to use. There should be a brand name on your carbuerator like cv or cvk.
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Post by florida on Jul 23, 2015 14:13:52 GMT -5
There should be a hole about 1/2 inch diameter on the tubing in between the air box and carburetor. I simply placed two pieces of ziplock plastic bags about two inches square over the hole and secured it with a ziptie.
If you are deleting the air box by installing a uni style filter then you will be forced to remove the charcoal canister wont you?
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Post by jtron on Jul 23, 2015 19:09:20 GMT -5
Ya I just removed the air box. I capped off the vacuum line and took off the canister. Im confused about one thing tho, for the gas tank vent do I just run a hose with a filter off the vent or do I still use the check valve that was on the line before the canister?
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Post by jtron on Jul 23, 2015 19:13:57 GMT -5
I think my gas tank just has one petcock on top that went to the plastic check valve then canister. The vacuum line went to the canister. The bottom where the gas comes out is just a hose that goes down to my fuel valve which has three fittings, gas in, gas out, and vacuum, my fuel valve is not on my tank.
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Post by JoeyBee on Jul 23, 2015 19:30:41 GMT -5
Ya I just removed the air box. I capped off the vacuum line and took off the canister. Im confused about one thing tho, for the gas tank vent do I just run a hose with a filter off the vent or do I still use the check valve that was on the line before the canister? i capped off the tube vent for my fuel tank. To allow venting I drilled a hole in the gas cap. That way I don't have to worry about gas leaking from the tube vent. With how small the tanks are I like to fill it as much as possible. |
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Post by jtron on Jul 23, 2015 19:36:39 GMT -5
Oops I already started a new thread...but just having the vent barb with a hose hanging off it would be ok then? I just tested out my jetting and stuff right now and I didnt have any problems so far
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Post by jtron on Jul 23, 2015 19:52:50 GMT -5
Oh btw my vent barb is on top of the tank so I dont think il have issues with splashing.
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