Driving the XT660s without this anoying and maddening plopping and banging when closing throttle?  Closing the AGR system with a blanket with help you ouit of this mess. Installing is easy - you do not have to remove the cylinder head for this! Works perfecly with aftermarket exhaust systems. Precisly made from laser cutted stainless steel, glas bead blasted. Including also stainless steel bolds. · no banging and popping in exhaust sound! · Works perfectly with aftermarket exhaust systems · perfect for tuned bikes. · Easy to install Fits all: · Yamaha XT-660R 2004-2016 · Yamaha XT-660X 2004-2016 · Yamaha XT-660Z Tenere 2008-2016 · Yamaha XT-660ZA ABS Tenere 2011-2016 · Yamaha MT-03 2005-2008  

"Cubic inch capacity is replaceable with nothing but more cubic inch capacity" This is an old saying, but it's message is still relevant! Especially the torque optimized 660 engines profits a lot from this modification. The power and the torque will rise over the hole range - more power in all situations.You do not have to change any more parts that the piston, cylinder and the gaskets. · drilling / coating of your cylinder · more power over the hole range · due to the high class new Low-Friction coating the new cylinder is even more reliable than the stock one · nobody can see this plus of power on your bike (Police...) · no more noise on the bike · perfect in combination with our racing cam and the cylinder head modification. The new low-friction plating is a extremly high grade plating that works perfectly with all kind of piston rings. The new honing is necessary concerning the correct running clearance and the surface roughness adequately to the piston rings. We do the following on your cylinder · de-monting, cleaning and glass bead blasting · boring of the cylinder up to the needed size · exact honing of the cylinder (cross-grinding!) up to the needed measurement · new coating of the cylinder

Who doesn't know this: The engine does not run proper, the idle is changing and you can not adjust it. And by the way: you have already though a while that is something is wrong with the bike... Often just the carb joint between injection body and cylinder is porous and has to be replaced. We offer this joint in a very good OEM quality. Fits all:   Yamaha XT-660R 2004-2016 Yamaha XT-660X 2004-2016 Yamaha XT-660Z Tenere 2008-2016 Yamaha XT-660ZA Tenere 2011-2016 Yamaha MT-03 2005-2007

Racing forged piston, lighter than the original Yamaha piston and of much higher quality! Piston milled from the solid block of aluminium with excellent craftmanship. Compared to the original we use a bore up to 5 mm larger, the compression ratio is slightly increased to 11.5:1 (original 10:1). Instead of 659 cc, up to 727 cc are now available for the combustion of the mixture. The result is impressive: the pressure in the lower and middle speed range is noticeably higher, almost up to the nominal speed the single-cylinder is now much more powerful. Depending on the stage of expansion, the increase in power is up to 5 hp.   Scope of delivery: cnc milled and forged piston, piston pin, clips, piston rings   Piston available with 100, 102 or 104 mm 105 mm on request corresponds to 660, 686, 714 or 727 cc absolutely high-quality milled forged piston Power increase over the entire rev range! Cylinder must be drilled and recoated (100 mm only honing) Cylinder must be drilled (100 mm) or drilled and recoated (102 and 104 mm) order matching head gasket separately Delivery incl. piston rings, bolts and clips Suitable for all Yamaha XT-660R - XT-660X - XT-660Z Tenere

DNA High Flow air filter for all Yamaha XT-660R and XT660X from 2004 onwards. The exchange airfilters simply replace the standard airfilter. The airfilter box doesn't have to be modified. Up to 40% more air flow in comparision to the standard paper filter. The filter only has to be cleaned when it has a 2-3mm thick layer of dirt. Cleaning only each approx. 80.000km. No more filter change - the oil impregnated cotton fabric of the filter ensures a maintenance-free life. The filter merely hast to be cleaned and oiled overy now and then. The DNA Exchange airfilter improves the performance: because of the better air flow the mixture volume is build up and provided more quickly. The engine reacts more spontaneously when accelerating. It also converts the faster filling of the cylinder into a better acceleration. In addition, this high flow filter is often able to correct the losses which are caused by complicated ways of air supply and airfilter boxes which often constitute a compromise between space proportion and effectivity. The High Performance! The High Performance of the DNA air filter is a must for all of our designs and our R&D team uses up to date Hi Tec equipment to achieve the best performance. Our R&D department is equipped with the latest Dynojet motorcycle & automotive dyno's and sophisticated air flow measuring equipment. Every single filter is tested and checked that it meets the High Performance standards that DNA has established. As a final result the customer receives the best performance air filter money can buy! The Long Life We at DNA proudly introduce a filter that can last the life of the vehicle. High quality materials, Hi Tec manufacturing process, designs that meet OEM quality levels and very strict quality control, is the secret behind the DNA Air Filters and the factor that allows us to give a Lifetime Warranty! Taking Care of the Filter The DNA Air Filter will serve you for many years and needs very little care using the DNA Service kit. When the filter is dirty simply follow the instructions that you can find in the service kit, allow the filter to dry, reoil and you are ready to use your filter again, like new! Taking Care of the Environment DNA brings "Taking care of the environment" one step ahead, by designing, producing and marketing a filter that you will never need to throw away. Using cotton instead of paper, we provide work to the cotton industry and on the other side no trees have to be sacrificed for paper to be produced. DNA Air Filter owners do not produce unnecessary waste as paper filter owners have to do every time the life of the paper filter ends. Even the box is designed and manufactured of top quality material allowing you to keep it in your garage and use it as a storage box.   1.. Polluted and strongly swirling air enters the filter 2.. DNA's new, multi-layered made and oil-soaked cotton gauze 3.. Dirt and dust adhere to the outside layer of the filter 4.. The special filter oil develops a specific static adhesion at the gauze and thus filters even the smallets dust particles. 5.. Finely woven, epoxy coated aluminium fabric 6.. Clean and swirl-free air flows into the carburetor.

DNA Stage 2 high flow racing airbox cover with an integrated airfilter in the cover. This cover gives the XT 660 engine the air it needs for powerful breathing! The stock Yamaha XT660 are heavily restricted by the small air inlet under the seat. Unleash your XT by using this DNA Stage 2 cover! Rain and splash water will not effect the filter - for every day use! Avaiable for the Yamaha XT-660 R and X. Replaces the stock cover. Attention: You will get the most power in combination with a racing air filter like DNA! We recommend using a Power Commander for maximum power.

Avaiable for the Power Commander V is the add-on Auto Tune module which allows for live, closed loop EFI tuning. Based closely on Dynojet's new Wideband Commander 2 it features a OEM quality Bosch Wideband O2 sensor. The Auto tune module allows users set a demanded air/fuel ratio in the Power Commander V software and the Auto tune will make adjustments in real time. When enabled there is an AFR table with the same 250 RPM increment resolution as the fuel table. The Auto tune can be configured for minimum run time before live sample as well as maximum +/- fuel adjustments in relation to the base map. The Auto Tune kit can also use the Dynojet map switch or any open/closed switch which allows the user to switch between live tuning to the parameters set thru the PC V software or the base map in the PC V unit. You can leave the map switch in "live" mode, or if you want to write the fuel map you can connect to the PC V software, retrieve the fuel trims and either write them to the map or clear them. We have also compared several Auto Tune derived maps to dyno tuned maps and the results were impressive. A very important requirement for building a good tune is to have a close base map to start out with, as the Auto Tune writes its fuel trims off the base PC V map. The Auto Tune module does require some basic wiring from the sensor harness into the modules. The Auto Tune module is a very good choice for those with a unique mods, where a dyno is not available, or for those looking for the ability to tune in real time. The ultimate combination we recommend is combining a full dyno tune session with the Auto tune. We build the map for the best combination of performance and efficiency, and then implement the AFR's we developed into the Auto Tune AFR table. This strategy will provide the best performance under all conditions. · Live fuel mixture setting while driving · Basic setting already programmed · to be used as a mobile setting module · incl. OEM quality Bosch Wideband O2 sensor · can be used only with the Power Commander V · NOT FOR USE WITH 2-CYLINDER BIKES (e.g. XT1200Z)!!!!  

Cylinder head gasket in Yamaha OEM Quality! High quality multilayer metal gasket.   Fits all e.g.:   Yamaha XT-660R Yamaha XT-660X Yamaha XT-660Z Tenere Yamaha XT-660ZA ABS Tenere

<p>       Cylinder head gasket in Yamaha Original Quality!<br />       Quality multi-layer metal gasket.<br />       Fits all XT660 R/X/Z from 2004 and onwards.</p>

<p>       Cylinder head gasket in Yamaha Original Quality!<br />       Quality multi-layer metal gasket.<br />       Fits all XT660 R/X/Z from 2004 and onwards.</p>

High quality manufactured oil bypass valves (thermostats) from JAGG.   An oil thermostat in combination with an efficient oil cooler has immense advantages that lead to an enormous increase in the service life of your engine. The oil flow to the oil cooler is automatically regulated according to temperature. At about 85°C the thermostat starts to regulate from 'Closed' to 'Pass'. From approx. 90°C the complete cross-section to the oil cooler is released. Installation in the two oil lines to and from the oil cooler.   The automatic oil cooler bypass works like a remotely controlled thermostat and directs the oil past the cooler until it has reached operating temperature. Ideal for automatically adjusting the cooling effect of an oil cooler on air-cooled single-cylinder engines.   Dimensions only approx. 38×38×19mm (without connection pipe). Connections 3/8" ~9.5mm Suitable for all OTR oil cooler kits and individual applications

The Jagg Manual By-Pass Valve acts as a manual thermostat, allowing you to by-pass the oil cooling system for cold-weather riding or for faster warm-ups on cool days. Works with most oil coolers. Durable anodized billet aluminum construction. Compact in-line installation.   The Jagg Manual By-Pass is supplied complete with all necessary hardware and easy-to-follow installation instructions. Installation note: If the oil hoses between the oil cooler and the oil source are too short, the oil cooler by-pass valve may not fit in the oil lines. Jagg mini by-pass valves require at least 7.5 cm (3 inches) of straight hose.   Dimensions only approx. 38×38×19mm (without connection piece). Connections 3/8" ~9.5mm Suitable for all OTR and other oil cooler kits as well as for many standard oil coolers

The secret of the new NGK Iridum IX spark plug is the laser-welded electrode made of Iridium. Thanks to her "minimal" diameter of only 0,6mm it concentrates the ignition voltage. This improves the combustion in all drives. Thereby the engine runs absolutely round, the motorbike speeds up faster. The high-tech metal iridium ensures the exact spacing between the electrodes. This prevents ignition misfire. The XT gets a notably softer engine operation, the gas acceptance is improved. Further, the Iridium spark plugs' durability is twice as long as that of "normal" copper spark plugs. Fits all: · Yamaha XT-660 R/X and XT-660Z Tenere.

NGK offer high qulaity spark plugs for the XT660 model range. NGK standard plugs are constructed for longer life and optimum performance. · Trivalent metal plating provides superior anti-corrosion and anti-seizing properties · Corrugated ribs prevent Flashover · Pure alumina silicate ceramic Insulator, provides superior strength and better heat transfer · Copper Core aids in heat removal · Triple seals prevent leakage With a new spark plug, the XT often gets a notably softer engine operation, the gas acceptance is improved. Fits all: · Yamaha XT-660 R/X and XT-660Z Tenere.

The O2-Optimizer is mounted between the stock lambda sensor and the stock wiring by using the stock plugs With the O2 optimizer the closed-loop area in the lower revs is set to a fix value. ECU stopps regulating the injection and you get more power and less shaking in the lower revs. Using a Power Commander without the O2 optimizer will not give you great benefits!! · when only removing the lamda (O2) sensor the bike will have error codes in the bike electric · adjusting of the closed-loop range possible by using a O2 optimizer (only authorized Tuning centers) · without O2 optimizer the closed-area can not be adjusted - even not with a Power Commander What you can expect: · no shaking in lower revs when using a Power Commander · no error code in the display while using in the bikes without O2-sensor · perfect adjustment of the bike with a Power Commander · Fits all XT660R (2007-->)  -  XT660X (2007-->)  -  XT660Z  -  XT660ZA Tenere ABS  

RR Oil Temp Direct Gauge Yamaha XT-660 models A good oil temperature is one of the vital factors for the service life of a big two cylinder engine. Especially in the warm up phase the enginge should not be pushed too hard. To be able to keep an eye on the oil temperature we have added this fancy oil temperature gauge to our range of products.   Oil temp gauge as an alternative to the original oil cover. Made from stainless material (high-grade steel/aluminium) Very precise display Made in Germany!  (no loss of dipstick like the cheap china versions) Best oit temp gauge in motorcycle magazine "MOTORRAD"   Fits for all: Yamaha XT-660R 2004-2016 Yamaha XT-660X 2004-2016 Yamaha XT-660Z Tenere 2008-2016 Yamaha XT-660ZA ABS Tenere 2011-2016

Machine milled Oil Coller Yamaha XT660R - XT-660X   Like many other single-cylinder engines, Yamaha's large water cooled 1-cylinder engines such as the XT-660 models tend to have very high oil temperatures. Especially in summer or off-road use, the critical level of around 100° C is quickly exceeded. Our solid block machined oil coolers help to prevent this. The uprated design, optimised during production (inner part rotated 45° to the outer edge), results in an ideal air flow to effectively dissipate any temperature peaks that may occur. This relieves all thermally stressed components such as the outlet valves, outlet valve seats and crankshaft bearings.   The fittings from the oil cooler for the oil line are at the rear of the bike, so that even in off-road conditions, the fittings are protected from tree branches, stones, etc.. An alternative installation with a bottom outlet is possible. Connection to the engine is easily made in the secondary oil circuit. Supplied complete with stainless steel braided oil pressure hose and laser cut stainless steel fittings.   Details: OTR Billet Oil Cooler Kit Aircraft grade 7075 T6 aluminium Machined anodised aluminium oil cooler Laser-cut mounting brackets Nearly indestructible Includes detailed instructions and all necessary mounting hardware (bolts, brackets, oil hose). Made in Germany by OFF-THE-ROAD 10 year warranty on cooler block!   Fits all: Yamaha XT-660X 2004 - 2016 Yamaha XT-660R 2004 - 2016

Racing Camshaft by OTR. Special made for the Yamaha XT-660!   You can expect more power and an improved torque. Appr. 5 PS and 4 Nm torque are available. The cam is deliverd in exchange of the old one. We try to always have a suffienct amount of cams for exchange in stock. If this is not the case, you should expect a delivery period of 14 days.   Do you want to keep your original cam? No problem! We also offer cams withouth exchange, however, with an extra charge.   The camshaft can be used with the original Yamaha valve springs. Note: Exchange camshafts must not be defective!   Fits all: Yamaha XT-660R 2004 - 2016 Yamaha XT-660X 2004 - 2016 Yamaha XT-660Z Tenere 2008 - 2016 Yamaha XT-660ZA Tenere 2011 - 2016

The concept is simple: the more you flow, the more you go. The better you can move air and fuel through the motor, the more power you will produce. To achieve this with an acceptable amount of money we now offer the boring of the throttle body. The whole throttle body will be machined to a +2mm bigger diameter. The axle is flow optimized and a new, special made throttle plate is mounted. This offers a maximum air flow. Horsepower gains up top without losing torque and power down low. An added bonus is that with the +2mm throttle body, the horsepower and torque is held longer in a usable range. What can you expect: up to 1 PS in lower, up to 3 PS in the upper range. This will make your 660 a real beast! We need your throttle body for about 6-14 days here in the workshop, depending on season. Please sent in the throttle body only - without any additional parts like the injector, throttle line bracket, TPS (throttle position sensor), gaskets, springs or any other parts. Only the housing, axle and throttle flap! Fits all: · Yamaha XT-660R · Yamaha XT-660X · Yamaha XT-660Z Tenere · Yamaha XT-660ZA Tenere

Modified pin of the decompression mechanism. To be used with our racing camshaft Yamaha XT-660.

Power Commander 6 Injection module with O2 Optimizer for the Yamaha XT-660R/X 2007 - 2016   The Power Commander 6 fuel tuner optimizes your ride anywhere you’ll roam. This sleek module seamlessly optimizes your air/fuel ratio without directly changing the ECU, making it effortless to push it to the max. Easily uninstall to revert back to factory default settings when you feel like giving everyone else a chance. Power Commander 6 takes the guesswork out of pairing efficiency with performance, keeping your focus where it belongs — on the journey ahead. Better than ever (and smaller than ever), Power Commander 6 now has a fuel change range of -100/+250%, automatically giving you the best mix of performance and fuel efficiency at all times. This fuel tuner holds two maps at a time for multiple drive options (via the Power Commander 6 map switch accessory), as well as 10 throttle position columns, so you won’t sacrifice comfort for performance. Featuring a plug-and-play kit, Power Commander 6 can be installed discreetly underneath your seat, ensuring your ride looks as good as it runs.   Power Commander 6   Compact design for discrete placement & easy uninstallation to revert to stock settings Vast library of tunes for any combination of aftermarket parts Easily change & upgrade tunes as you upgrade parts Comes with Power Core software that connects dyno runs with fuel tuners to unlock your ride’s potential 2 position map switching function built in (map switch not included) Pick up possibility for gearing an speed. Analog input (allows user to install any 0-5 volt sensor and build an adjustment table based on its input such as  temperature) Fuel mixture can be changed from -100%/+250% 10 throttle positions are now avaiable Enhanced adjustment range of the accelerator pump.. Connetion possibility to the Dynojet Autotune - this allows adjument of the fuel mixture while driving. Fits all XT660RX 2007 onwards with stock Oxygene sensor Scope of Delivery:   Dynojet Power Commander 6 Dynojet O2 Optimizer Mounting Material Mounting instructions Fits all Yamaha XT-660 2007 onwards with Lambda sensor:   Yamaha XT-660R 2007-2016 Yamaha XT-660X 2007-2016   If you are interested in a custom made, perfectly fitting map for your bike, get in contact with us here in Cologne. You will not regret it!

Power Commander 6 Injection module for the Yamaha XT-660R/X 2004 - 2006   The Power Commander 6 fuel tuner optimizes your ride anywhere you’ll roam. This sleek module seamlessly optimizes your air/fuel ratio without directly changing the ECU, making it effortless to push it to the max. Easily uninstall to revert back to factory default settings when you feel like giving everyone else a chance. Power Commander 6 takes the guesswork out of pairing efficiency with performance, keeping your focus where it belongs — on the journey ahead. Better than ever (and smaller than ever), Power Commander 6 now has a fuel change range of -100/+250%, automatically giving you the best mix of performance and fuel efficiency at all times. This fuel tuner holds two maps at a time for multiple drive options (via the Power Commander 6 map switch accessory), as well as 10 throttle position columns, so you won’t sacrifice comfort for performance. Featuring a plug-and-play kit, Power Commander 6 can be installed discreetly underneath your seat, ensuring your ride looks as good as it runs.   Power Commander 5   Compact design for discrete placement & easy uninstallation to revert to stock settings Vast library of tunes for any combination of aftermarket parts Easily change & upgrade tunes as you upgrade parts Comes with Power Core software that connects dyno runs with fuel tuners to unlock your ride’s potential 2 position map switching function built in (map switch not included) Pick up possibility for gearing an speed. Analog input (allows user to install any 0-5 volt sensor and build an adjustment table based on its input such as  temperature) Fuel mixture can be changed from -100%/+250% 10 throttle positions are now avaiable Enhanced adjustment range of the accelerator pump.. Connetion possibility to the Dynojet Autotune - this allows adjument of the fuel mixture while driving. Fits all Yamaha XT660RX 2004-2006 without Oxygene sensor Scope of Delivery:   Dynojet Power Commander 6 Mounting Material Mounting instructions Fits all Yamaha XT-660 2007 onwards with Lambda sensor:   Yamaha XT-660R 2004-2006 Yamaha XT-660X 2004-2006   If you are interested in a custom made, perfectly fitting map for your bike, get in contact with us here in Cologne. You will not regret it!

Heatech Quickshifter Easy Yamaha XT-660 model range - go the Braaaapp... Braaapppp, Braappp way Next generation standalone quickshifter Easy to install. Easy to setup. Easy on your wallet. The perfect choice for anyone aiming for quicker lap times, better 1/4 mile runs or simply more fun on the road. Gear shifting is extremely fast (a few hundredths of a second) and comfortable. The sensation is that of a continuous transmission of power: you do not feel the push interruption typical of traditional gear changes. Simply and quick installation on the Yamaha XT660. Install ring sensor on the shift lever connection. Install wireing harness to the spark plug connectors. Install power supply - that's it! The unique ring-type QSS sensor works in in push directions and allows clutchless gear shift in a perfect way. With the iQSE the clutchless, full throttle shifts are not only quick but effortless too. Now you can shift like a pro! The quickshifter cuts the ignition at the moment you start moving the shift lever. The gearbox is unloaded, making it possible for you to switch one gear up without closing the throttle. By the time the spark comes back, you’re already in the next gear - no hassle, no glitch, no time loss. The iQSE is not only chosen by racers, but more and more street riders too due to the simple installation and affordable price. For street riders the benefit is improved control and comfort, and to put it simply, MORE FUN! It really makes all bikes more fun to ride, including classic and touring bikes too. · Measurements: 50 x 30 x 17 mm (1,9 "x 1,2" x 0,6 ") · Weight only: 43 g (1,51 Unzen)   Awesome tech · Change settings any time you wish through your phone, wirelessly, without hassle Simple installation · With our special ring sensor and the bike specific wiring harnesses, installation couldn’t get any simpler than this. Best choice · Packed with unbeatable features for an unbeatable price. Best price/value.   As easy as it can get The product was designed with the average rider in mind to make the installation and setup as simple as possible yet it has all the features needed for pro racers too. Supreme compatibility One sensor that works on all motorcycles, also with reverse (race) shift pattern. Plug ‘n Go harness kits are available for most bikes. Compatible with all our products too. Small yet powerful The iQSE module comes in a small package so you don’t have to sacrifice your under-seat storage space. Wireless connectivity The iQSE is the only quickshifter module on the market which utilizes wlan technology and iOS + Android app for setup and verification. Can even be disabled with a few taps to restore factory condition e.g. for servicing the bike. You’re in safe hands The module is weather and shock proof and comes with our 2-year warranty. We offer free and automatic software updates for the lifetime of this product. Even the module firmware is updated automatically via wlan (with our zero-risk technology) which makes the product future proof. Fits all: · Yamaha XT-660R 2004-2016 · Yamaha XT-660X 2004-2016 · Yamaha XT-660Z Tenere 2008-2016 · Yamaha XT-660ZA ABS Tenere 2011-2016