GY6 Intake manifold By jayblaze (Read 5,506 times)

[jayblaze]

Hey watsup everybody, I recently changed out my intake manifold and put a filter on instead. But once I had done that, there were those 3 tubes just hanging there and im not really sure what they were for or what i should do with them. Can i just leave them hanging or do they actually serve a purpose because only one of them seems to be blowing out air and the other two, lifeless. Any suggestions?

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[Bashan]

The one blowing out the air is your crankcase vent. It's important that this one stay free breathing. It will pass some oil vapor and make a mess so a lot of guys tie that one off vertically with an old filter of some kind stuck in the end. That way the oil that collects in the tube runs back down into the engine when you shut down. The argument against this method, and a valid one I think, is that moisture is a contaminant in the oil and not removed. However, I've did this on one of my scoots pretty much it's whole life and it still has good compression. The safest way to secure the crankcase vent is an oil catch tank or can. If that hose running to the back terminates pointing down towards your rear axle, it's your transmission vent. The idea there is to pull vapors off the transmission with negative pressure in the airbox. I don't think it does much, tie it off verticle. The last one probably runs to some weird pollution device canister. Trace it down and make sure it's not allowing a vacuum leak. If it isn't, it's not hurting anything like it is. Rich

[drjeff]

sweet looking filter.
!!!
love the jet engine look !!

What is the brand, how much do they cost, where is the best place to get one?

[sprocket]

Yeah the filter looks good but they don't work very well...use a K&N or a UNI and oil both...

[jayblaze]

Oh okay, so basically just let them hang off haha....or zip tie them away from me.....

yea the one blowing out air on the bottom left hand corner spits out some oil and vapor , i can smell it, like gas or something...and the intake filter is just a cheap old one off ebay for like 10 bucks.....i actually did that for the looks because the stock intake manifold is big and bulky ...

[sprocket]

The one that spits oil.. you should put into a can to catch the oil so you don't get it all over the scooter and the environment.. I don't want your oil ... thanks

[trancebear]

Awesome, this post answered my question that I was going to ask. I am installing a UNI air filter tomorrow and wondered about the extra lines I will be taking off the old air box. Thanks for the info guys.

[roketafan]

if u run your scoot long distances u can blow out some oil and run low on oil ,ask me how i know lol,scorched piston, so do find a breather for that hose for sure....

[sprocket]

On the valve cover vent you can put a fuel filter on the end.. this will stop dirt entering the engine...but you should check it every oil change to be certain that oil vapour hasn't plugged it...

[scooterchromeparts]

Sept 1, 2011 7:07:35 GMT -6 Bashan said:

The one blowing out the air is your crankcase vent. It's important that this one stay free breathing. It will pass some oil vapor and make a mess so a lot of guys tie that one off vertically with an old filter of some kind stuck in the end. That way the oil that collects in the tube runs back down into the engine when you shut down. The argument against this method, and a valid one I think, is that moisture is a contaminant in the oil and not removed. However, I've did this on one of my scoots pretty much it's whole life and it still has good compression. The safest way to secure the crankcase vent is an oil catch tank or can. If that hose running to the back terminates pointing down towards your rear axle, it's your transmission vent. The idea there is to pull vapors off the transmission with negative pressure in the airbox. I don't think it does much, tie it off verticle. The last one probably runs to some weird pollution device canister. Trace it down and make sure it's not allowing a vacuum leak. If it isn't, it's not hurting anything like it is. Rich

Nice... great explanation

[Deleted]

Sept 1, 2011 2:48:23 GMT -6 jayblaze said:

Hey watsup everybody, I recently changed out my intake manifold and put a filter on instead. But once I had done that, there were those 3 tubes just hanging there and im not really sure what they were for or what i should do with them. Can i just leave them hanging or do they actually serve a purpose because only one of them seems to be blowing out air and the other two, lifeless. Any suggestions?

Those Filters we started selling them in our stores about a year ago. Haven't been as popular as the K&N Style filters.

[SABER]

Sept 1, 2011 2:48:23 GMT -6 jayblaze said:

Hey watsup everybody, I recently changed out my intake manifold and put a filter on instead. But once I had done that, there were those 3 tubes just hanging there and im not really sure what they were for or what i should do with them. Can i just leave them hanging or do they actually serve a purpose because only one of them seems to be blowing out air and the other two, lifeless. Any suggestions?

Because all the hoses were open to each other in the air box I decided to go this route. Whole thing cost me about $10 between Ace hardware and Advanced Auto. I have sense moved this up under the rear fender to make a cleaner look.

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[jct842]

jayblaze, in that first picture it don't look like you have a fender. Dirt kicked up by the back tire is going to fill that filter fast/

[Bashan]

Looks great SABER, that should take care of it. I really like the Frankenstein look though and think those fittings hanging out would be cool. I'd probably go with brass though rather than steel. Rich

[jct842]

jayblaze, in that first picture it don't look like you have a fender. Dirt kicked up by the back tire is going to fill that filter fast/