Airbox excess fluid bottle - ZX6R Forum
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post #1 of 11 Old 05-17-2017, 09:33 AM Thread Starter
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Airbox excess fluid bottle

Hello ladies and gentlemen!

I've been looking all over the place, but not seen a direct answer to this question (correct me if I'm wrong):

I own a ZX6R 2006, and it has a little plastic bottle/reservoir on the left side, which is connected to the airbox. A different thread explained that it was to catch excess oil from the airbox.

Well a few weeks ago I went for a day long ride, when I got home the bottle was full and it even had a little in the hose too. My mechanic (who just did a full service with valve adjustment) said to empty and let him know if it happened again.

Today the exact same thing happened. So should I be worried? It makes NO sense to me, that such an amount of oil would be present in the airbox..


BONUS INFO: Yes, I do pop an occational wheelie and ride it at balancepoint.

Thanks people
Soren
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post #2 of 11 Old 05-17-2017, 02:14 PM
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When you change the angle of the oil in the crank case, you cause more oil to be slapped up into the available volume. When there is positive pressure in the cases, the venting system will draw that into the intake -- behind the filter, surrounding the area that the catch bottle is located.

I'd be concerned, as that bottle holds a fair number of cc of oil.

If you do the math on what the volume is above a piston when it's at TDC, that's a small number.... on the order of 11 or 12 cc.

For the PCV valves to toss enough oil fog into the air box, to fill that bottle..... how much do you think is going through each cylinder? Hard to see as it burns up with the fuel/air mixture, and gets further reduced if you still have the cats in the header. No smoke, so it must all be good, right?

Until it isn't.

If you manage to get more oil into a cylinder than can be compressed, the first thing that should happen is the rings will get blown off the cylinder wall. A loss of compression will occur. If you are lucky and it only happens for a small, small part of a second, you may never know you had an issue.

If it happens for a long enough period to bend a ring, so it binds up on the cylinder wall and breaks; bad news.

If you manage to get enough in there that a piston cannot make it to TDC, a bent rod, or a spun bearing may result. Or both, which leads to the pictures of holes in cases, etc..... followed by the 'what motor fits in my frame?' thread......

"Basic stuff fellas. Use your head for something other than to break your next fall."

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #3 of 11 Old 05-17-2017, 03:43 PM
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post #4 of 11 Old 05-18-2017, 02:59 PM Thread Starter
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Originally Posted by RJ2112 View Post
When you change the angle of the oil in the crank case, you cause more oil to be slapped up into the available volume. When there is positive pressure in the cases, the venting system will draw that into the intake -- behind the filter, surrounding the area that the catch bottle is located.

I'd be concerned, as that bottle holds a fair number of cc of oil.

If you do the math on what the volume is above a piston when it's at TDC, that's a small number.... on the order of 11 or 12 cc.

For the PCV valves to toss enough oil fog into the air box, to fill that bottle..... how much do you think is going through each cylinder? Hard to see as it burns up with the fuel/air mixture, and gets further reduced if you still have the cats in the header. No smoke, so it must all be good, right?

Until it isn't.

If you manage to get more oil into a cylinder than can be compressed, the first thing that should happen is the rings will get blown off the cylinder wall. A loss of compression will occur. If you are lucky and it only happens for a small, small part of a second, you may never know you had an issue.

If it happens for a long enough period to bend a ring, so it binds up on the cylinder wall and breaks; bad news.

If you manage to get enough in there that a piston cannot make it to TDC, a bent rod, or a spun bearing may result. Or both, which leads to the pictures of holes in cases, etc..... followed by the 'what motor fits in my frame?' thread......
As horrible as you make it to be, apparently it is no big deal - only the result of wheelies.
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post #5 of 11 Old 05-18-2017, 03:00 PM Thread Starter
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Do the kleen air mod
Read up on this mod - never heard of it before, but thanks a lot! Sounds like it will fix the issue.

Have you done the mod yourself?
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post #6 of 11 Old 05-18-2017, 03:19 PM
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As horrible as you make it to be, apparently it is no big deal - only the result of wheelies.
It's an issue, if you over fill the crankcase.
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"Basic stuff fellas. Use your head for something other than to break your next fall."

"There's this adage that we have 2 ears and one mouth so we should listen twice as much as we talk. Unfortunately with the Internet people have taken this old adage and turned it around. They have two eyes and 10 fingers so they think they need to post 5 times as much as they read. And since they have 10 fingers and one brain, they only have to think 10% of the time! "
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post #7 of 11 Old 05-18-2017, 03:41 PM
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How full is the oil level?

That would be the first thought for me when you are getting oil into the air box

Stupid people say stupid things on the internet, so be wary of who those people are. If you solicit advice on the internet, just keep in mind 99% of what you'll receive is not based on fact or science-and likely atleast 95% of it is based on bullshit and bravado regurgitated from some other schlub who also did not experience any of what they claim and are also full of shit. If you don't like my bluntness- too bad. I am not here to please you, so move along, your approval is not desired nor is it needed. So before opening your pie hole and adding more stupidity, perhaps sit back, listen, absorb and learn something. You know that saying, it is better to remain silent and thought a fool than to open your mouth and remove all doubt!
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post #8 of 11 Old 05-18-2017, 05:45 PM
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Originally Posted by eyZeX View Post
Read up on this mod - never heard of it before, but thanks a lot! Sounds like it will fix the issue.

Have you done the mod yourself?
On my previous bike , which happens to be the same as yours. I did it to reduce the popping from the aftermarket exhaust.
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post #9 of 11 Old 05-24-2017, 09:51 AM Thread Starter
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Originally Posted by riverszzr View Post
How full is the oil level?

That would be the first thought for me when you are getting oil into the air box
Around the full line, maybe the slightest above. For normal riding that shouldn't be an issue, but I guess it could be the cause when combining it with a wheelie.
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post #10 of 11 Old 05-24-2017, 09:52 AM Thread Starter
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On my previous bike , which happens to be the same as yours. I did it to reduce the popping from the aftermarket exhaust.
And you had the bike for some time without any issues? I have not been able to find a thread regarding the long term kleen air mod.

Last edited by eyZeX; 05-25-2017 at 12:18 AM.
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post #11 of 11 Old 05-27-2017, 05:22 AM
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And you had the bike for some time without any issues? I have not been able to find a thread regarding the long term kleen air mod.
The Kawasaki "Kleen" system, is there so that it burns all the excess fuel before it goes through your catalytic converter, because it will destroy it.
When you put on an aftermarket exhaust, the excess fuel burns at the end pipe, causing poping and flames. That is why you do the Kleen air mod. You remove this. It has nothing to do with anything else.
I can't recall how long i had the bike running with the mod. But it's the first thing that came to my mind when i read about your wheelies. Many stunters do this to avoid destroying their engines. If enough oil accumulates in your airbox, it will get sucked into your engine and that will be the end of it.
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