Hi all, I have an XT660R for dual purpose on and off road with 2into1 Metal Mule, BMC filter and PC III, and I�m going to put it on the dyno to make a custom fuel map but I don�t know if put the snorkel or take it off because I can feel the difference in better thorttle reponse without the snorkel, but in off road (dust, water, stones...) I�m affraid of let strange things come into the airbox.

Offroaders, are you riding with or without snorkel?
Cheers.

Greetings Ernesto.

My mate Supamanaint (Shane) took my snorkel out and since then I have done a fair bit of offroad, including a 4ft water crossing!

There have been no problems so far. Shane does a lot of dirt road (dusty) riding and hasn't mentioned any contamination problems. We both have DNA side covers coming, so that will make the airbox much less watertight.

Shane is a clever ******* though, and is thinking of making up a removable cover for the airbox in case of marginal watercrossings.

We'll be sure to send you photos of the cover. In the meantime, I would say that you are safe to ride without the snorkel in all but the most full-on off road conditions... Boneman

Last week I checked th filter and was ok, then I did 200km on tarmac and then cheked it one more time it was clean and the I did 40km off road even with dust and then open the airbox and the filter was clean.
So the snorkel finished its working days.
Boneman thanks for the answer!

That's what we're here for mate.

Glad to hear you're getting your bike dirty!

Cheers, Boneman

Hi Ernesto,

You can always make a prefilter using Chux lightly oiled with filter oil.

Stick some adhesive velcro (hook) around the airbox opening and the chux will cling to the velcro.

This works to keep the rough stuff out and keeps the main filter cleaner longer.

Hope that helps,cheers.

Shane.

first thing i did when i got my r was to take the snorcle out. But then again we have a lot of rain so not much dust. ta

The dust entry would be the same with the snorkel in or out, the snorkel is there for the water line, it raises the height of the air box for water crossings.

It acts as a silencer to reduce intake noise & it steels 1.5hp from the motor, due to air speed been slowed because of all the turns the air has to make through the snorkel.

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Mods that I have done to my XTX's

My 04 XTX
Stage 1 & 2 DNA filters / Kev fuel mod / snorkel mod / Drilled air box mod / Engine breather mod / Fork Spacer mod / 15w fork oil /
[
My 07 XTX
Raptor 700 cylinder 102mm / Modified Crank Case to take a 105mm Raptor Cylinder / 11:1 102mm JE Raptor piston / Stage 1 Raptor Hot Cam / Ported head / Colder Spark Plug / +2mm Throttle body / DNA stage 1 & 2 filters / Modified Air Box / Snorkel removed / Worry Brothers stage 2 filter cover / 6mm & 8mm Bolts Replaced with Titanium Bolts / Recovered seat in Black / O2 Eliminator /

My 09 XTX
59HP at the rear wheel / Stage 2 Raptor Hot Cam / DNA stage 3 Air Box / Carbon Can Exhausts / Modified Exhaust Link Pipes / PCIII With Custom Fuel Map / Wideband Commander O2 Data logger / LCD100 Dyno Jet display & fuel adjuster / 2500 OHM HT lead instead of a 10K OHM XT lead / Extra Coolant Cooler / Protaper Fat Bars / Tail Tidy With LED Tail Light / OKE Protection Knobs / LED indicators / AIS blocked / Modified rear sprocket rubbers / Rear Foot Pegs removed / 09 ECU With 02 Sensor Changed To A 06 ECU / Complete wiring harnes Changed from 09 to 04 / Home made LED resistor flasher / Hole drilled in the fuel tank filler neck to allow quicker filling / Modified Bar End Weights / Progressive front fork springs, 15W fork oil, forks lowered 25mm, used XTR rear links lowering the rear 20mm, rear spring one click stiffer / Changed front & rear guards from blue to black / 47T rear sprocket / Speedo Healer V4.0 / Kev throttle cam mod / Throttle grip mod / The new 2010 O2 sensor mod is out, works a treat, The new 2012 O2 Controller is out, PM me for details

Now ride a 2018 MT09SP ABS + TCS

My KTM 990 SMR Mod book. http://www.ktmsmt.com/viewtopic.php?f=13&t=4946

I run mine with the snorkel out..never had a prob
all I use it for is gravel/off road...
In fact the DNA filter system is the only probs
I have had... they let dust though.. & the side
air box filter lets water in if you stop long
enough in deep water...
I now have oiled foam filter in it...
http://www.thepipercrossshop.co.uk/m....asp?model=209

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...

I do not know of any air filter that will sit submerged in water & not let water in, most oil based filters are splash proof.

If you oil a K&N or DNA correctly there should be no dirt entry.

__________________
Click here to join the XT Supporter's scheme

Mods that I have done to my XTX's

My 04 XTX
Stage 1 & 2 DNA filters / Kev fuel mod / snorkel mod / Drilled air box mod / Engine breather mod / Fork Spacer mod / 15w fork oil /
[
My 07 XTX
Raptor 700 cylinder 102mm / Modified Crank Case to take a 105mm Raptor Cylinder / 11:1 102mm JE Raptor piston / Stage 1 Raptor Hot Cam / Ported head / Colder Spark Plug / +2mm Throttle body / DNA stage 1 & 2 filters / Modified Air Box / Snorkel removed / Worry Brothers stage 2 filter cover / 6mm & 8mm Bolts Replaced with Titanium Bolts / Recovered seat in Black / O2 Eliminator /

My 09 XTX
59HP at the rear wheel / Stage 2 Raptor Hot Cam / DNA stage 3 Air Box / Carbon Can Exhausts / Modified Exhaust Link Pipes / PCIII With Custom Fuel Map / Wideband Commander O2 Data logger / LCD100 Dyno Jet display & fuel adjuster / 2500 OHM HT lead instead of a 10K OHM XT lead / Extra Coolant Cooler / Protaper Fat Bars / Tail Tidy With LED Tail Light / OKE Protection Knobs / LED indicators / AIS blocked / Modified rear sprocket rubbers / Rear Foot Pegs removed / 09 ECU With 02 Sensor Changed To A 06 ECU / Complete wiring harnes Changed from 09 to 04 / Home made LED resistor flasher / Hole drilled in the fuel tank filler neck to allow quicker filling / Modified Bar End Weights / Progressive front fork springs, 15W fork oil, forks lowered 25mm, used XTR rear links lowering the rear 20mm, rear spring one click stiffer / Changed front & rear guards from blue to black / 47T rear sprocket / Speedo Healer V4.0 / Kev throttle cam mod / Throttle grip mod / The new 2010 O2 sensor mod is out, works a treat, The new 2012 O2 Controller is out, PM me for details

Now ride a 2018 MT09SP ABS + TCS

My KTM 990 SMR Mod book. http://www.ktmsmt.com/viewtopic.php?f=13&t=4946

Thats correct... but the DNA filter that replaces the side of the air box
will let water into the air box... with out that DNA filter the water has to be
up to the bottom of the seat to enter the air box...

So what I was saying Don't use the DNA filter on the side of the air box
if theres likely to be any deep water crossing...

__________________
Harley Davidson..
The easyest way to turn gasoline into noise with out the side efect of horse power...