Kev,
Thanks to let us know about your investigation.
Did you make this modification because you still have the Old ECU or does it works for the new one as well?
Thanks
L66

fuel mods n rockers
 

I have a new 06 model xt and so far it has not cut out at all but is rather lumpy I do fing this annoying tho I have a Hyerbusa that is also choppy on the throttle so I guess that its a lot to do with fuel injection in general. I have been interested in the mods mentioned here tho they do sound like common sense to me and I would like to try them on my bike. If I do this for the standard pipes fitted and then change them for something that wont please the neighbours will I have to go through the exersize again ?

I do feel that the stock bike is a bit underpowered, perhaps the engine is really just screaming inwardly to be free'd.

Interested in your comments thanks

mainly the problem with the stock bike is that it has to meet european standards of emission and noise pollution therefore when it comes out of the factory it has restrictions which are there to comply with those parameters, i.e. cat converters in the exhausts, restricted air filtering and ais (air induction system)

So replacing cans with open ones and removing the snorkle plus fitting high flow filters stage 1 & 2 will release the full potential of the bike at the expenses of the environment.

We understand however some problems are present with ecu and tps which Yamaha still hasn't manages to rectify in the XTX/R bikes however I can tell you that the MT-03 has no such problems because on the official Yamaha website it is stated that a newly designed fuel injector has been fitted to that bike and I had it on loan for 2 weeks and can guarantee it works.
I wish that mod could be done to all the new XTX/R but perhaps Yamaha can't be bothered

Ecu
 

Hi Lewiss66

I still have the old ECU. Yamaha in Australia won't give me a new one. Resulting to this mod.

This mod will work on any version of ECU.

I have forwarded a full step by step discription with photo's for fitting this mod to the administrator. He will post it soon.

Kev

Yes people the patented KEV Mod will work on all ecu's and I am going to publish the guide in the techno section soon and thanks to Kev for coming up with this gold nugget :wav:

Hi
one thing you will find in doing all these mods are (apart from making your credit card scream with mercy ) .you will get a better throttle response through the rev range,better mid range power,smoother running engine ,a better sounding exhaust note,you will only gain a minimum higher top speed .
So all in all its a lot of cash for very little gain . If it is power you are after then the way to go is with a different cam shaft or a engine rebore , larger piston .

Important Message For Kev
 

KEV please read and help thanks

Dear Kev I have received your pics and the only problem is my pc won't run the file Fuelling.wps, I understand is a Microsoft word document but can you save it as a .doc document or even a .txt file please and then resend it?
Thank you so much I am dedicating a page on my website just for this mod so I do need the document.
Best Regards
Fran

Just sent it off mate.

kev

got it working on it now Kev, cheers

Fran

Captmoto,

Talking about the MT03, When you say "on the official Yamaha website it is stated that a newly designed fuel injector has been fitted to that bike" It might be interresting to know if the Injector itself is the only part to replace instead of the all assembly. In that case It might be worth replacing that part for the new one instead of buying a power commander + dyno...!
L66