PCV valve in 06' ?

[scooterman]

What does this thing do ?

Can you remove it ?

thanks

[Kami no Chiizu]

dandydan said:

There are a few nice changes for 2006. There is a new "PCV" system on the 06's which stands for Positive Crankcase Ventilation and is essentially a hole in the bolt that lets the air go out to this new filtering system. I believe it smooths out fluctuations in pressure inside the block which hinder the engine a bit as the piston pumps up and down. It adds a bit of power and reduces the emissions. It also eliminates 'blow by' which is when the gas blows past the piston rings and into your oil, contaminating it. This is a minor problem with the older Ruckus.

That help?

[scooterman]

hmm that explains it, does anyone have pics of this new system?

[Dandy Dan]

I posted that desciption along time ago...since then I've learned the air actually goes IN to your engine though a reed valve/check valve sort of thing in the new PCV system. Then there's another hose coming off the top of the head where it exits to your airbox to get burnt.

I believe the general idea is to reduce/eliminate 'blow by' of gas past the piston rings into the oil which degrades the oil and can lead to engine damage. Here's a pic:

[scooterman]

thanks for the picture

[scooterman]

ooo no.....would it get in the way with a aftermarket exhaust ? especially the yosh ?

[Dandy Dan]

Yes it does. The Yosh mounts fine but when you sit on the bike and compress the suspension then it hits. The solution is just to remove that black funky looking piece and zip-tie the actual PCV unit to the empty bolt holes so it up higher. I did this and others have as well. If you get the wheelbase extension kit from Battlescooter then it moves the exhaust backwards and it clears fine so you can put the black piece back on.

[scooterman]

do you have a picture of that.......please : )

Im just trying to get ideas and what not when i get my ruck.....cant wait !

[Dandy Dan]

I don't actually have a pic of how I had it but it's not that hard to do. Only the black cover hits the Yosh so even if the actual PCV unit doesn't move, it doesn't matter. You can use zip-ties to attach it or there's a bracket that comes with the Yosh that is supposed to be to support your fender but it doesn't really fit because the Japanese fenders that it was designed for are different but you can you use it for the PCV system if you bolt one end to where the black cover mounts and the other end to the PCV unit. Here's a pic of my Ruckus with the black cover, the Yosh and the extension kit. As you can imagine, if you moved the Yosh 4.5" forward then it would be really close to the PCV black cover.

[timberwolfmadcat]

Does a longer aftermarket shock help

[chanito]

I already explained what a PCV system is in FAQ, but since nobody reads it, i am going to explained again
Any internal combustion engine will have some hot gases from the combustion chamber leaking pass the piston rings into the crankcase, if left there they can create all sort of problems like raising the pressure inside the crankcase and the engine will start leaking oil anywhere it can, like seals and valve cover gaskets, and with time those vapor will react with the oil creating corrosive substances that can damage engine components, an easy solution was just venting those vapor into the atmosphere, but that is not very smart, so engine designers came up with what is call Positive Crankcase Ventilation, it is so called because it uses the positive (higher than atmospheric) pressure created in the crankcase to direct those gases into the intake to be burn, primitive systems like the one in the early (03-05) ruckus, just have one hose from the valve cover dumping those gases thru a metered orifice (it is there to create a pressure difference so it will not mess with the CV carb) into the filter housing, some of us who have remove the filter housing and installed after market filters have to just deal with the funky stumble after riding at high speed release the accel and get in the throttle again (one day i will have to install an old jet into the PCV hose, just too lazy to do it).
Newer systems have a fresh air supply into the crankcase as this make the system way more efficient, the only problem is that you have to make sure that it supply fresh air and not allow vapor to return by sneaking the wrong way, so most cars have a pcv valve, which is a one way valve. and on the 06 ruckus is a sophisticated electronically control valve, that work wonderfully
::)If you do not get it now, i will whip you And read the freaking FAQ, that is why i wrote that

[Kami no Chiizu]

Your faq has grown too long!

I didn't think to look there to get my quote, I just searched PCV.

[chanito]

you too deserve a come here

[Kami no Chiizu]

Don't worry, I'll make sure Keri gives me plenty of tonight. ;D

[Dandy Dan]

timberwolfmadcat said:

Does a longer aftermarket shock help

Yes it would but a 285mm shock would be very close.....a 310mm would probably be okay. I'd be really careful...

[skuuter]

Some of the new cars / trucks have gone to an electric crankcase ventilation system also. Score the Ruck "High Tech".....sort of.....

[ZOOMER46]

kaminochiizu said:

Your faq has grown too long!

I didn't think to look there to get my quote, I just searched PCV.

kami is right,your faq has gotten almost too big to find somethings in
especially if they are in the middle posts,they take ages to get to..

we should all learn to use the search facility more often,
(which is at the top of the page)
as a suggestion in the box marked
in the last .... days put say 200
and last .....posts put 30
as both are set up with only 10 each as standard,

if you put in for example 800 and 100,
it may take too long too find them,
or too long to read if it does

and chanito,hows the big bore settling in ?

[8chpl]

Some automobile PCV units are quite small, I wonder if it would be possible to adapt one to a pre 06 Ruckus engine.

[ZOOMER46]

is the rocker cover different from pre-06 to the 06 on ?
not hard to swap really if it is different,and just buy the pump
for an 06 ?
or any air-pump, maybe one from a fishtank
or similar principal even

[chanito]

The valve cover are the same, the diference is on the tensioner cover, it has a fresh air intake that goes to the electric PCV valve, you can use an automotive one, but it will work also when the scooter is cold giving you a rough cold running problem