Hi im thomas from belgium
Driving a 2006 xt660x
Just bought it with 19000km clocked
But havent had any surging so far no mods
Am i lukky or does this come on sporadic
But wanted to say hi to all on the forum

Hi Thomas and welcome to the forum.

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and to

As far as I know, this problem is either there or it isn't. It doesn't develop over time. If it doesn't surge now, it probably won't do it ever.

For the record, my 2004 did it badly, and my 2006 doesn't.

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XT660R (2006)
XT600E (1994)
Triumph Trident 750 (1992)
My blog: http://goingfastgettingnowhere.blogspot.com/

Hiya and welcome aboard!!! The famous surging can come and go a little depending on the season, I noticed my new (2011) XT660X was brilliant when I got her last August with daily temperatures in the mid 30s, and then surged badly in the winter at a few degrees. But the famous Kev fuel mod cured everything!!!!!

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(Now sold on, sob) 2011 Blue XT660X with gold wheels, was 26,500 km.
Engine mods: K&N Stage 1 filter, DNA Stage 2 filter, snorkel removed, Kev fuel mod fitted.
Plus: smoked Puig screen, Yam aluminium sump guard, Yamaha / Acerbis handguards, Givi Trekker aluminium side cases, Leo Vince X3 cans plus Kev front fork mod and Fender Xtender. Just fitted Michelin Road Pilot 3 tyres.

SOLD the XTX for a Super Ten 1200. And just bought a Raptor 700 so staying on here for some tips....

Im 30 years old ,bin true some racers,naked bikes but bought
A xt600e just for fun last summer took it tot austria tot great on and of Road fun ,and loved it ,after i sold it to some poor dude from eastern europe who was travelling on a xt600 from 84 with 130k on the clock ,we traveled a while together true the alps ,he really kept talking about how much he loved his xt and dreamed to get one like it but couldnt afford it,so i sold him mine for peanuts ,but now last week i really mist my thumper so decided for a newer one i found and own a 2006 Oranje xtx complete stock ,but with plans
Accrebis hndguards
Engine guard
And tkc80 offroad tyre on the xtx rim ,stil love the dirt roads

Welcome mate, the 06 models hardly surged.

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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