Hi I was just looking for advice on buying an xt660x. I was wondering could anybody tell me is there any technical differences between the '05 model and the '07. Would it be worth spending an extra 1000 for the '07 or should i just go with the '05?

Cheers.

and to


Well first you need to establish the difference in the mileage on either bikes and if the difference is not a lot then continue to read... otherwise go for the one with considerably less miles on the clock.

From 2007 onward a few changes were made to these bikes as follows:

1) Aesthetically, the tank panels, front and rear light cowlings were redesigned and these are not compatible with previous models because on the 2004 the tank panels are mounted on to the edge of the radiator, see 2) whereas the new 2007 are only fixed to the fuel tank.

2) A smaller radiator was introduced.

3) An 02 sensor or Lambda probe was introduced. This can be a pain in the ass when using a power commander or any other fueling devices, such as the Kev Mod which it is sold in this forum by Kev. Because of the 02 sensor, devices such as 02 eliminators came available onto the market to kind of neutralize the effect of this sensor.

4) The best improvement was the introduction of a new redesigned and streamlined swing arm which was only changed on the XTX models and not on the XTR whic we think it's an unfair decision because the old 2004-2005 boxed section swing arm it's quite ugly, also the chain tensioning system is more accurate and easier to work on the new swing arms.

Other than that pretty much everything remains the same. Both bikes are subject to a common (fixable) problem which means they surge and stutter in the low revs, because they are lean and need more fuel in the A/F mix, until you do this: http://www.xt660.com/showthread.php?...=Co+adjustment

The air box is also slightly sacrificed and therefore a side panel filter such as the DNA Stage 2 makes a great improvement to make the bike "breathe" better and gives you also a nice increase in power and performance.

https://www.e-dnafilters.com/Product.asp?ID=665

Welcome on board Wesley.

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Welcome mate.

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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 /
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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

Thanks for the detailed information and thanks for the welcome