[Jogon30]

I agree!!!!!

[Struens]

What grease do you use on the air box gasket?

[NMKawierider]

What grease do you use on the air box gasket?

I use No-Toil rim grease. This stuff:

http://www.amazon.com/No-Toil-Rim-Grease-4oz/dp/B001AWFO76/ref=sr_1_4?ie=UTF8&qid=1463283361&sr=8-4&keywords=no+toil+filter+grease

[Bobbed06]

have you considered thermal wrapping the exhaust pipe that runs behind the seating area? That surely would reduce temps in that area. Something like DEI Titanium wrap

[NMKawierider]

The heat doesn't really seem to be a problem. Isn't effecting anything back there.

[Zekeshouse]

Someone said cf moto sent them a twin air replacement filter with a spring. I talked to Bryce at cf moto us yesterday because after a day of dusty trails my z800 lost power. Loaded it up on the trailer and took it to the dealer. Finally found that the air filter was trying to collapse upon itself abs was sacking oil from the crankcase. Bryce from cf moto says nothing he can do about it.  The $180 Bill from the dealer is my problem. They don't send replacement filters according to him

[NMKawierider]

Someone said cf moto sent them a twin air replacement filter with a spring. I talked to Bryce at cf moto us yesterday because after a day of dusty trails my z800 lost power. Loaded it up on the trailer and took it to the dealer. Finally found that the air filter was trying to collapse upon itself abs was sacking oil from the crankcase. Bryce from cf moto says nothing he can do about it.  The $180 Bill from the dealer is my problem. They don't send replacement filters according to him

That's what I was concerned about too because my TwinAir has no spring and can collapse as soon as it becomes restricted even a little. Fortunately for me with the other filter it never gets dirty so no issue so far but..If it ever does, I'll ne buying a Unifilter because it does have a spring....or make something for the TwinAir to insert. 

[NMKawierider]

I have an update on the first post.

[Jogon30]

I have an update on the first post.

Just read your update and wanted to ask on the new uni filter material. Are you going to run it dry? Or oiled up? And with or without the the outerwear?

[NMKawierider]

I have an update on the first post.

Just read your update and wanted to ask on the new uni filter material. Are you going to run it dry? Or oiled up? And with or without the the outerwear?

I am going to oil it cause I want it to do the best it can. I like not having to open-up the airbox very often...lol. And I won't be using the prefilter unless it's really dusty or rainy. You are still using the Purple one right? Seems I am working my way back to it...lol

Wouldn't it be funny if I find I now need to go back to B2? 

[Jogon30]

I have an update on the first post.

Just read your update and wanted to ask on the new uni filter material. Are you going to run it dry? Or oiled up? And with or without the the outerwear?

I am going to oil it cause I want it to do the best it can. I like not having to open-up the airbox very often...lol. And I won't be using the prefilter unless it's really dusty or rainy. You are still using the Purple one right? Seems I am working my way back to it...lol

Wouldn't it be funny if I find I now need to go back to B2? 

Yes the purple one and it seems to do just fine I'm not sure if I have lost any power do to changing up the sliders and spring position I have lost some mph on the top end or it takes longer to get there not sure haven't really tried. Maybe I'll go test it on the street somewhere take filter off and do some runs then with it back on and see if there's a difference. If there is I bet it's not going to be much. I'll try today

[NMKawierider]

I have an update on the first post.

Just read your update and wanted to ask on the new uni filter material. Are you going to run it dry? Or oiled up? And with or without the the outerwear?

I am going to oil it cause I want it to do the best it can. I like not having to open-up the airbox very often...lol. And I won't be using the prefilter unless it's really dusty or rainy. You are still using the Purple one right? Seems I am working my way back to it...lol

Wouldn't it be funny if I find I now need to go back to B2? 

Yes the purple one and it seems to do just fine I'm not sure if I have lost any power do to changing up the sliders and spring position I have lost some mph on the top end or it takes longer to get there not sure haven't really tried. Maybe I'll go test it on the street somewhere take filter off and do some runs then with it back on and see if there's a difference. If there is I bet it's not going to be much. I'll try today

Ok, I'll bet with the Purple it won't make a difference as it was made for a V-6 on the street. And I'm not 100% sure the dual stage Uni is really a problem. Just looking at the surface area and comparing it to the actual TwinAir I see at least a potential problem when it gets dirty. In an earlier post Spaceman78  reflected there may be an airflow reduction and there shouldn't be with the original filter...but changing the media to something finer has proved that it will. I am hoping to find a happy medium of clean and unrestricted air to the airbox. I don't with the prefilter at high RPMs and I just don't want the filter to play any part of that. This RED course Uni has 40PPI where the purple is somewhere between 20 and 30.

If not, this will slide right on the 3" steel adaptor that sticks out or I can put a quick silicone 90 on it and use an adaptor I bought for the CVT stuff and have it sick up. It's actually 8"s long:

https://www.amazon.com/Uni-Filter-Up-8300St-Stage-Straight/dp/B00A3HLF4A/ref=sr_1_1?ie=UTF8&qid=1473089892&sr=8-1&keywords=UP-8300st

[dirt224]

Additional or Pre-Filter for the Z8

All these issues regarding air filtration destroying engines has prompted me to modify my cold air intake system to accept an additional foam filter. I chose a high-flow mushroom-type used on many V-6 because of the size and where I wanted to use it.

NOTE: This Mod and location is not recommended for anyone that will be in situations that fill or cover the bed in MUD and/or WATER!




One mod was done right away because the nut that held it together was not fixed to the inside and for my needs it needed to be, I epoxied it to the frame inside. DO THIS FIRST!



And being a foam type that could use the same foam filter oil treatment as the Uni or TwinAir would give me an excellent additional layer of protection. Some places we ride have fine talc which can get through the best of filters. I have also ordered a Twin Air unit for the airbox as well.
This new filter uses a 3” flange so it was necessary to open the intake at the top of the pipe to 3” from its OE of  about 2”. The ol’ hole saw did the trick.



I then needed some 3” OD tubing to go between the two and Midas Muffler turned me on to a nice 18” piece of scrap they had.  Thanks Midas! Cut it to length and so that I would have two tabs on the end to anchor it to the intake pipe.



Installed the pipe to the intake and custom ground to fit the contours.



Once all the inside edges were beveled for smooth air flow, I fitted it and positioned it in the hole…which by the way has to be ground out to 3.25”, I drilled and installed the set screws to the tabs.







Then it was sealed to the intake pipe with JB Weld as it would bond to both plastic and steel. Of course it was wiped-down with acetone first.



Now because of the depth and how tight the 3” pipe fit in the rubber flange of the air filter it needed to be opened up a bit. An air grinder with a long flat sided stone did the trick.



Then it was just a matter of lubing the two with silicone grease and assembling and tightening the clamps.



Also treated the filter with some NoToil foam filter treatment and installed it.



Now all I have to do is spin that nut you see off to clean and service that filter. The one in the airbox should stay very clean for a very long time and I won’t have to get in there after every ride.
I have also special ordered two water resistant black prefilter covers from outerwears. These will slip over the mushroom filter like a shower cap and keep the filter pretty dry and act as yet another layer of protection.
Kind of a lot of trouble to go through but if it will help keep this engine safe, for me it’s worth it.

IF you live or ride in extremely wet or muddy conditions, this may not be the best mod for you.

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UPDATE 10/15/16:

Well just got back from a long and very dusty ride and the mushroom filter charged with No-toil oil was well covered with dirt and dust. It never even got close to choking-down and when I pulled it off, no sign of anything getting through. Everything from the inside of the foam as far as I can see and swab with a long cotton swab was completely dust free. So, I can assume (because I have not yet opened the air box) the new TwinAir I just installed looks as good as I just put in too. This is going to make it so much easier to keep clean air flowing then expected. I expected at least some to get through but that wasn't the case.  I also see I can buy a sheet of UniFilter foam material which is a much better quality material then what comes with this filter. I may just buy some and custom-cut it to fit just for my own satisfaction/ piece of mind.   

http://www.amazon.com/gp/product/B00J4Z8GA8?psc=1&redirect=true&ref_=oh_aui_detailpage_o06_s00
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UPDATE 10/16/15:

OK, the Outerwears 2qt funnel pre-filter fits like a glove. Perfect. Wish it came in black...but red is the only color I could find. Now when the Unifilter sheet gets here I'll cut and install it replacing the course purple foam with a fine green foam. That wrapped with a waterproof/resistant pre-filter, all before the two-stage TwinAir filter in the box. I DARE any BS get to my engine through the intake now...lol







UPDATE 6/3/15:

Here is a little video on installing the 3" adaptor and making the hole for it in the bed:

Update 9/5/16

During the course of time I have tried several filter types in this unit starting with the original Purple material which is about 20 PPI, very course but it let some partials by so I tried the Unifilter Green Fine which is a single layer 65PPI material but that ended up being very restrictive so I then wend with the standard Unifilter Red/Yellow which is a 40/60PPI material. This seemed fine until the other day when I was testing a new clutch setting I noticed I couldn't reach the rev limiter. It was then I noticed sitting in the shop that at about 5600RPM the prefilter I am using was being sucked hard against the filter surface. Well, this meant restriction obviously and a reason for the power fall-off at higher RPMs. So off it came and I will use it on rainy rides. I also noticed that it may also be possible for the red/yellow material to become restrictive especially when it gets a little dirty. I was going to change to a complete new filter but decided instead to go to the single layer Unifilter Red material which is 40PPI. This is way better then the Purple material yet should allow better breathing then the dual-stage material...all the time. It may mean I will have to clean the TwinAir in the box once in a while...like once every six cleaning of the mushroom filter.. but..that's OK.

So for you folks that have done this mod, know that the prefilter can get pulled down to the surface and if you are using something other then the OE filter material, this is what I am trying next:

https://www.amazon.com/Uni-Filter-BF-5-Foam-Sheet/dp/B00J4ZB470/ref=pd_rhf_dp_p_img_1?ie=UTF8&psc=1&refRID=GKBBCDKHSNADYTFPJ2CV

------------------------------------------------

UPDATE 9/9/16

New filter material installed. It is a bit thinner then the Purple but fits fine. Also found that although the prefilter didn't look all that dirty, it was in fact VERY dirty which may account for the problems getting air through it. I guess you have to actually clean then with soap and water sometimes....lol

Here's a couple pics of the new material. Ain't it pretty?

how did you figure out where to put the hole in the bed of a side by side to get it come out

[NMKawierider]

how did you figure out where to put the hole in the bed of a side by side to get it come out

From my original air intake mod when I wanted it in the center, I did have to adjust a couple of things to make that happen. Look to the first write-up for the grilled intake and to the end of this video:

[Gory]

I would like to do this improve , But I a little confuse for all the opinions , NMK could you please tell me if this improve is the best for maintain clean the filter , or there are another  new option.
My riding conditions is 90% dust but what happens if raining in the middle of mountains or desert .
Could you please tell me if the purple mushroom is the best for my conditions . Or a I need to buy another thing like the red cap ?
My secondary is in B2 and 24 g .
And I buy today a unifilter because I was with the stock one .
Thanks