hey as some of you may know i need my bike restricted, i think the bike is producing 45bhp of what ive read, would it be possible to restrict it down to 33bhp the bike has done arround 33000 so i guess its lost a cupple bhp now

Hi there, yes it is possible, I should know I have been doing the research and am currently going through the process myself!

One Yamaha dealer I spoke to said they would fit the official Yamaha part, which consists of some kind of washer arrangements. They wanted �63 for the kit (part number: kit-xt660-25-kw), and around �55 for an hours labour. However they did not have the part in stock, and said the distributors said it would take around 3 weeks to get it........I was certainly NOT prepared to wait that long till I can ride this beast lol.


Other independent bike garages said that they would fit the fiinternational kit (part number 05-DM01-K25) as seen on the website: http://www.fiinternational.com
/ShowDetails.asp?name=XT660X&type=

The actual prices for the kit varied from garage to garage, from �150 through to the full price as shown on the website of �172.99, and each garage would charge an hours labour, so around �50.

The fiinternational kit is a metal bracket on the throttle slide on the gear selector side of your bike, preventing the throttle from being opened all the way up (or so I have been told by fiinternational themselves when I rang them up).

So yes it is possible, and will cost you around �200-�250.

Hope this has helped!

Harry


p.s. you may have had more responses by using a topic title like 33bhp restriction, as 'dyno help' doesn't really describe what the question is about

thanks Hazza ok cool i might have to get a restrictor kit then, but i will ask my local dyno shop to give it a run and see if they can turn it down on the computer as it will only cost me �45 for the dyno run(as the first run will be free just incase they cant do anything to it)

yeah il change that now thanks Hazza

Kris

The another way to de-tune your bike is to make up a restricting washer half the size of the throttle body diameter, that fits between the throttle body & head in the rubber mount, then get a custom fuel map made on the dyno.

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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