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Old 07-11-09, 13:03
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Kev Kev is offline
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Join Date: May 2006
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I have found my hands are sensitive to the XT's vibration through my Pro-taper bars & have come up with a simple solution to reduce the vibration with this mod.

Not my invention, just applied it to the XT in a simple way, this technology is used in Helicopter engines to reduce vibrations. By adding an extra weight attached to the existing bar weight. The brass weight does not touch the side walls of the bars, they are 1mm smaller in diameter & takes the high frequency vibrations out of the bars.

I used longer bolts & threaded the brass weights, the longer bolts hold the extra weights in place & are locked in place by a 6mm nut, away from the XT bar weight (which is the trick) & in the center of the handle bars. I am going to make a few to test in the standard XT bars with longer weights, I will let you know how it works out.

















This is what I have ended up after a month of playing with different designs, I have hardly any vibration from 4000rpm upwards. The trick is the stainless steel end weight & the brass inner weight must not touch the bars.











If you are using standard bars you can fit longer weights for a better result.





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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


Last edited by Kev; 23-07-11 at 09:52.
 

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