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XT660X & XT660R General Discussions General discussion related to XTX & XTR Only

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  # 1  
Old 05-02-11, 11:36
richardsracingmad richardsracingmad is offline
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Join Date: Jul 2010
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Fitting the Kev O2 Sensor mod.

Well, this has to be the best �50 that I have spent.

it is very simple to fit, call it a 15 minute job.

Kev sends you comprehensive instructions with it, but there is one tiny detail that I will show you, where the XTX and the XTR differ, and that is in removing your petrol tank cover to check your coolant level.

The first picture shows that you have to remove your seat, and then undo the two black Allen key bolts at the top of the petrol tank panel.


...Then you have to undo the radiator shroud, which is held in place by black "plastic rivets". I have never seen these before, and they are a very good design, in that they are reuseable, and so easy.
Basically, to remove the "rivet", push the centre inwards, I use a small Allen key to do this


here is a picture of the rivet, with the centre pushed in


then you get your hand behind it, and push it out (towards you). To refit them, push the centre the other way, so that the centre is now proud of the head, and simply push it back in.


When you have removed both of these "rivets", the tank panel lower attachment is just one of those "push/pull" fittings, just like on your sidepanels. So just pull it off, then pull it towards the front of the bike, so that the ear comes out of the side panel.

The rest of the install is just like Kev's detailed pictures.


Anyway....what's it like?

Well, I have ridden 30 miles on it, (after a quick run to get it hot, and refill the coolant)

Bloody fantastic!!!! No more surging, and my bike doesn't cut-out anymore!

I thought the surging/stalling was going to be something I would have to live with, being a big single cylinder, with fuel injection...but, it is as smooth as silk.





Nuff said.

So here it is, my XT Xtra Smooth.





oh....and effectively, by buying Kev's O2 Sensor Mod, over the Dynojet one, my new Rental 613-01 handlebars came for free !
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2008 XTR Mods : DNA Stage 3 Airbox, PC111, Carbon Cans Ovals, Steve Ruth built XTR734cc Big Bore with - High Desert Dyno (HDD)/ Cuervo Racing Gas Flowed / Ported Head fitted with +1mm Valves & uprated Springs, HDD 5050 Camshaft, HDD +3mm Throttle Body, CP 105.5mm 11:1 Piston, Custom Mapping, Piasini ECU, Renthal 613-01, Barkbusters VPS, Pivot Pegz, Touratech Bashplate, Foam Grips, Kev's O2 Sensor Mod, Kev's Extra Coolant Cooler, Wilbers Progressive Fork Springs and Rear Shock

Last edited by richardsracingmad; 05-02-11 at 19:24.
  # 2  
Old 05-02-11, 14:03
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Kev Kev is offline
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Nice work mate, thanks for your feed back.
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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

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