to restrict the air intake.

less air intake = less combustion i.e. less pollution.

and less noise!but the holes don't bypass the filter!it would be too dangerous!

In drilling your airbox, you bypass your air filter. Unless i have the complete wrong end of the stick (quite probably) i was under the mipression the holes were to be drilled on the airbox access cover and on the other side in a similar position. If not...

...im happy to get my drill out.

maybe you are right, however I wided the air intake hole but before the filter!

The better solution may be to buy a stage 2

You don't bypass the filter. When facing the airbox, you will be drilling the 'airbox' to the left of the filter which is where air from the snorkel is routed anyway.

But yeah buy a stage 2, I hopefully will be soon.

Kev, does this reply mean that, as a short term measure, the Stage 1 and 2 filters can be fitted to an 08 bike, with the snorkel removed, and this 'lamba' thing should be able to sort out the fuel/air mixture??
If this is right, what adjustment would you recommend, as a start point, for the co? Bearing in mind the bike will have cans fitted too.
Thanks.

You could try some of these filters.

http://cgi.ebay.co.uk/motocross-AIR-...QQcmdZViewItem

Freeloader your statement is totaly incorrect, if you drill them as per my instructions you will be ok, you would be drilling in the prechamber before the filter. The air box is made up of 3 different chambers.

Chamber 1, before filter where the snorkel sits, safe to drill holes.
Chamber 2, is after the filter filtered air, do not drill.
Chamber 3, is below chamber 1 & collects water & dirt that enters chamber 1.

You can fit both filters, the O2 sensor will correct the fuel mixture under cruising conditions & when the motor is warm. The only problem is the O2 sensor does not work under all conditions & a fueling device is recommended to correct this.

Yes but this mod is hidden, instead the dna stage 2 is too much visible, and think is illegal in Italy... ufffff what a stupid law

Cheers Kev, top advice as usual. I will get back to you as soon as its run in, and I have decided how far I want to go with the mods.
Cheers.

Help I will be doing this today need help
 

Hi can you please help I have made the fueling mod looking to do the 4 holes but reading this I need to do 5, one more extra hole can you please pont out the extra hole? oh and what is this about ? (plug up side holes using vent caps) is this the 4 holes that I have not done yet?

The 5th hole if you want to add it is next to the removed snorkel on the left side of the bike on top of the airbox.

These days I recomend drilling 4 holes on the sides. When you want to sell your bike you can buy rubber plugs from you local hardware to block up the holes.

CO setting on an 07 xtx
 

Kev just tried to change the co setting on my 07 xtx and the setting displayed is 110. This is the original setting as I have never changed it from new. what do you recommend as a setting with the snorkle removed and a stage 1 filter.

Thanks:002:

Hello!
I ride in rain a lot. Is there possibility that removing snorkel AND drilling airbox could cause me problems with water??
Thanx

one word 2 letters begins with n and ends with o
:SpinHappy_15XK8L:

advise
 

fitted k&n air filter,fitted ccc cans, put my co up from -4 to 14 if i remove the snorkel will i need to do anything else or will it run even smoother is it advisable to fit some gauze over the hole to prevent objects falling in! or shall i wait till i can get i power commander and just do a stage2 please advise thanks people :eusa_dance:

The hole that the snorcle leaves is on the dirty side of the air filter so dont worrie about it!

Hi Kev

Need some help please. I have a 1995 Tenere and would like to do the K&N stage 1 and DNA stage 2 but see the stage two cover is different on the Tenere to the 660X/R. Is there a way around this? I have sent an email to DNA asking if they have a stage 2 for the 1995 Tenere but have had no response.
Many thanks

http://www.hyperpro-services.nl/cgi-...ail&id=18:0179

pics are down :needpics[1]::suicide[1]:

The free area of the filter would be more relavent than the filter area wouldn't it?

Mine has Staintunes, DNA stage 2 and a PC.

I just removed the snorkel and de-screened the filter.
The motor is smoother at light throttle and is getting better economy.

Anyone else tried de-screening the filter?

Just remember the steal screen is there for back fires or poping back through the throttle body, so the paper filter does not catch on fire.

To answer your question yes I have tried this mod, you would have even better gains in adding a stage 1 & 2 filters.

I accecpt entirely that the stage 1 filter would be preferable, but a 4 times the cost of a std replacement didn't feel it justified.

Were that to happen (back fire) wouldn't it be a bigger problem if you had an oil soaked cotton filter sitting there?

My point being is that surely this would be a very very rare event would it not?

You asked the question & I was only telling you what I know. If you read on I did say I have run this set up on my bike.

At least you have been told the facts why they fit a steal screen in 99% of motorcycle air boxes. It is totally up you if you want to remove the metal screen.

Yeah, that's all good. I'm no mechanic so was just trying to get a handle on the probability and significance of a problem.
Not questioning or disputing the answer or nothing.

No worries, only trying to help with the facts.

The K&N main filter is serviceable so you never have to replace them, you must take that in to the costing. I am still running both my filters since 2005. The best gain filter by far is the stage 2 filter, try & save for one of those, they are worth the money AUD100.00.

Do I just pull the snorkel off ? There have been no pictures since I joined and no written instructions to follow. :076:

Yes moffman, just pull it out. Don't worry you won't break anything, just give it a wiggle while pulling.

yes it just pulls out you wont need pics just get 2 big handfulls of it and pull and wiggle !!

:Christo_pull_hair: cheers bear, didn't want to break anything :D

I think if I remember rightly I skined my fingers and ended up on my ar*e when mine finaly came loose :laughing11:

just did it!!!
 

So i did it...got myself a Stage 1 and Stage 2 DNA filter from FREEZE at very pretty price (thanx Freeze), took the seat off, took the side cover of the airbox off, took battery out (just for the fun to see how much space there is, pulled the snorkel out , now what now....

The stage 1 filter that slides into place is no problem , that is done. I personally feel that the snorkel is there for a reason, seems to me that gaining 0.3HP does not justify removing it, will not make a diffrence for me who is not racing the XT in the Dakar.

Ok , so stage 2 filter...is there a fastening device for this, can i use the screws from the original cover, the rubber housing of the filter seems a bit flimsy. I have a 2008 XTR. A while ago there was some speculation about what to do with air and Co settings. I do not have money for a PC, and there is no nneed for the Lambda sensor thingy for this model, it has the sensor on the exhaust already.

Suggestions for CO setting after both filter changes?
Anything else?
GB

ok, i see according to instruction on DNA filter, i can use stock bolts to secure...
And then inportant message : Fuel injection recalibration is absolutely necessary.
There is nothing to be done if i dont fit a PC or similar product, except changing CO. The bike compensates for itself for the increase in air doesn't it...(that is what i have heard from local bike mechanic)

Oh!!!, and i just heard that importers of DNA filters into South Africa stopped doing it..where do i get the cleaning and re-oiling kit without being robbed in daylight??. i hear it is expensive excersise if you clean these filters often...(i ride alot of dusty and muddy roads, so cleaing intervals will be short)
GB

answers found
 

Ok, seems that i have found alot of answers from more searching on forum. Got alot of my own q's answered.
Please confirm:
1)CO setting needs to be upped by 5-10 settings,--how will i know what setting to use (some say 2., some say up to 10), or is best thing to take for dynotune and just make sure it does not run too rich ? Not fitting a PC ..yet...

2) Is there a easy way of rerouting the wires that ran ontop of the place where the snorkel used to be?...would love to use this empty space for some tools or accesories for long distance trips. Some pics of anyone who did this if available?

3) I see some nice alluminium frames for the stage 2 filters...will ask someone to lasercut something for me too...
Cheers
GB

:WellDone_OROQR1:Gee you answered your own questions within a half an hour.

not yet
 

Hi there Kev....need some answers for this ...

1)CO setting needs to be upped by 5-10 settings,--how will i know what setting to use (some say 2., some say up to 10), or is best thing to take for dynotune and just make sure it does not run too rich ? Not fitting a PC ..yet...

2) Is there a easy way of rerouting the wires that ran ontop of the place where the snorkel used to be?...would love to use this empty space for some tools or accesories for long distance trips. Some pics of anyone who did this if available?

Thanx
GB

1/ It's more of a feel, try the different CO1 settings & fine the smoothest ride.

2/ You can't really move the loom from the open hole.

Thanx Kev, worked like a bomb, moved it up by 5 for now, will have to play around a bit, cannot really feel difference between 5 and 6, and have to take for long ride once it is fully warmed up, then only i should probably "feel" it.

Just a photo of the shorty snorkel.Atttached