OK this is my first post as could do with some advice in general.

I have Kev's MOD's downloaded, so that's a start.

I want to make my modifications to improve performance and I'm no mechanic/wizard but will have a go and have seen all the threads on the site, however, I'm aware I need new cans, watching eagerly with regard to MTC exhausts, air filter etc. But in what order, to keep cost down/spread cost over time, could I make changes in stages and still benefit ? If so in what order?

XT is standard and I think the first thing is to stop the lurching forward in slow moving traffic/about town.

Any ideas would be very much appreciated.

Thanks......

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DannyBlah



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Right this is just my personnel view to sort you out.

Kev fuel mod (which will hopefully sort out your fuelling even with out the filters)
Stg1 filter
Stg2 filter
Cans
Kev spacer mod
Done.

You could get a stg 3 mod but is very expensive

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Plough on

OK, thanks for this as a starter.

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DannyBlah



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kevs fuel mod will sort most of the surging and if you build your own like I did its very cheap to do. Upping your c0 setting also helps towards this, as does the cush drive rubber mod.

I've put k+n stage 1, dna stage 2, mtc cans, and kev fuel mod on mine and also carried out the air box mod and snorkel removel all in various stages.
Best power improvement per pound has to be the dna stage 2 filter.
Best sound improvement is the mtc's.

Happy modding, be warned though, it's addictive

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I'm always in the sh1t, only the depth varies

Cheers stumpdave. Will read up on the mods before committing. Just a little apprehensive re the warranty thing!!!

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DannyBlah



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No need - the Kev Mod is perfectly reversible, you can have it on and off and no effect on any warranty items.

What year XT660X do you have?

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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

Hi Kev,

Mine is the 09 model.

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DannyBlah



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The 09 model has a better ECU then the 07/08 models in regards to the surging, the best solution to reduce the surging is with a Power Commander with a custom made fuel map if you have the money. The filters really open up the HP & Torque on these motors & would recommend you get the stage 1 & 2 DNA filters as well.

__________________
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

If you cant afford both stage 1 and 2 DNA filters at once, the stage 2 makes the bigger difference. As yet I still haven't got a DNA stage one.(Any one getting shot of one let me know). The MTC cans are very reasonsble cost wise and very good too.

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Mods so far:- Kev Mod/Snorkel Removed/Airbox Drilled/CO2 Upped/Cush Drive Mod/M.T.C. Exhaust/Avon Distanzias:avon: Fitted/NGK Iridium Spark Plug/H4 Bulb Upgrade/White Wheel Trim/Scotoiler/Hand Guards.