Its Here At Last Kev's Tenere Fuel Mod
 

I have been testing the fuel mod over the last few days at different times of the day and different attitudes right down to sea level



The bike pull cleanly right through the rev range up to the limit cut out, it will pull from 2.5 k revs in top gear at 45 mph and open the throttle and it will pull strongly without having to change down a gear. I would say with KEVS mod and the stage 2 DNA kit the bike and O2 sensor eliminator it is has transformed the TENERE into a proper thumper with loads of bottom end grunt which it DID NOT have before you would need to have change down a gear below 3k revs. I would say to anyone thinking of doing this mod, DO IT YOU WILL NOT REGRET IT,
it is like riding a different bike.

You will have more grunt at the bottom end without losing any top end speed

To get your KEV TENERE FUEL MOD you will need to contact Kev, either by PM or leaving a message on this TOPIC


And before anyone ask's, Kev offered me the mod for free to test it out when I said that I would try it out but I bought it and I have nothing to gain from Kev from telling people about the mod

I had no doubt Kev will pull another of his "hot" tricks.

Well done, this team will be nothing without Kev

:notworthy: :notworthy: :notworthy: :notworthy: :notworthy: :notworthy:

A big thanks to Rick for helping me out, I could not have done it without you.

I am busy getting some kits made up as we speak, if anyone is interested send me a PM & I will put your name down on a list & fill you in with the full details. I will be selling them through the forum shop soon.

Basically we have a cheap fuel mod that adjusts the fuel mixture across the whole rev range, it will help the A/F ratio when installing a DNA stage 2 filter or exhaust Cans or both.My mod is a very simple way of tricking the fuel injection to make it run a little richer when installing bigger filters or Cans.


A Power Commander is still the best tuning device by far & is far more advanced in tuning then my mod, if one can afford one with a custom fuel map made on the dyno then that is the way to go.

:toothy1:

If anyone is not sure on how to fit it and live in around the SOMERSET area then I am more then happy to fit it for you free of charge if you come to me in TAUNTON


It is about a 20 minute job

Hi

sounds good to me

my tenere goes back to the dealer tomorrow to fix the dreaded charging fault subject to my charged battery getting me there as i did not want to risk any damage by being recovered but if you dont mind me asking what O2 sensor eliminator did you use

Thanks

Gary

PLEASE NOT WE ARE NO LONGER USING THE O2 ELIMINATOR. 10/4/2010

Without O2 Eliminator for AUD$65,00 You can buy them from here in the UK.

XT660Z Kev Fuel Mod.

Recommended to be fitted with DNA stage 2 filter & pipe, or just a pipe or stage 2 filter.

What you get for your AUD$65.00.

1/ A Kev Fuel adjuster with connector block & the fitting instructions on a CD.



http://i201.photobucket.com/albums/a...evxtx/1-39.jpg

Fitting instructions

1/ Remove the ignition Key from the ignition.
2/ Remove the seat & left air box cover.
3/ Gently push the sensor through the Air Box pushing on the side ribs of the sensor, do not push on the end of the sensor.
4/ Pull the loom & Air sensor on top of the Air Box.
5/ Cut the Blue/Black wire 2.5cm from the sensor, bare the Blue/Black wire by a 1cm fit the Blue/ Black wires in the connector block & tighten the 2 screws holding the Blue/black wires, it does not matter which way around they go. Can you spray the connector block & wires with WD40 spray or similar, or tape up the connector with insulation tape.
6/ Refit Air temp sender in the reverse order.


http://i201.photobucket.com/albums/a...ideairbox3.jpg

http://i201.photobucket.com/albums/a...airsensor1.jpg

http://i201.photobucket.com/albums/a...refitblock.jpg

http://i201.photobucket.com/albums/a...DSCF2766-1.jpg

You can solder the wires together instead of using the white connector block.

http://i201.photobucket.com/albums/a...x/DSCN3828.jpg









http://i201.photobucket.com/albums/a...smodXT660Z.jpg

How it works

This fuel mod adjusts the Air temperature reading down from the actual ambient temperature. By adjust the temperature reading down the Engine Control Unit (ECU) thinks it is colder then it really is so in turn makes the mixture slightly richer.

When the Knob pointer is pointing at the white marker (12 O'clock position) the Kev fuel mod is turned off, to make the fuel mixture richer you turn the knob clockwise.

Taking the white markers at the 12 O'Clock position you can safely adjust the knob clockwise to the 10 O'Clock position, I would expect the best settings to be around the 3 to 6 O'Clock position.

http://i201.photobucket.com/albums/a...lockModoff.jpg
http://i201.photobucket.com/albums/a...tx/6Oclock.jpg

You can download the Parts & Workshop manuals from these links below.

1/ Click on each LINK
2/ Click on FREE USER
3/ Wait for counter to count down to zero
4/ Click DOWNLOAD & save to your PC.

I will supply the links when a sale is made.

PLEASE NOT WE ARE NO LONGER USING THE O2 ELIMINATOR, but are using the new 2012 O2 Controller.

What a difference now with Kev's mod, DNA stage 2 filter and cover. Now 2000 miles of very happy riding has just become significantly better ! what joy :-)))))) Just the Leo Vince cans now to complete the job. Thanks for the email Rick, will hopefully source them soon.

Thanks for the feed back scoobie, glad you are happy with your XT660Z now.:walk:The combinationn of the extra air & fuel does make a difference.

Very good feeback, well done Kev another super Mod!!

:icon_king:

:drool: I am interested! Any increase on fuel consumption?

Not a great deal, I will have to fill mine up this weekend so I will be able to give you a better idea later, but while testing and since I have not noticed a huge drop in fuel consumption. If anything it my improve because the motor will pull from lower revs so the engine is not working as hard

Even if it cost me 5mpg then it is still worth it in my opinon :nike:

I will let the boys testing the mod answer this question on their own person experience.

I will give the technical side to the answer.

A lean fuel mixture produces less HP. Lets use a lean A/F of 14:1 for example, by correcting the A/F ratio to around 13.5:1 the XT motor will produce more HP & torque.

So if we have a A/F ratio at 13.5:1 which produces more HP then the 14:1 A/F & cruising at 70MPH, you will need less throttle opening to keep at the same speed. So in theory you should use similar amount of fuel. A little more fuel to get the extra HP but in turn you have a decreased throttle opening to keep at the same speed.

Hope that makes sense.

Thanks, PM sent!:headbang:

PM back to you.:sbike:

YEP that is what I meant, and it work in reality too :drool:

Hi Pinglow,

I'm watching the fuel consumption quite carefully. Normally i'm achieving around 226 - 230 miles before the low fuel level starts flashing. I'm sure consumption will be higher, would seem it will be a trade off for better performance. In saying that it probably depends on the position the mod dial is tuned to. Kev maybe able to shed greater light on this...

I am really inerested in one of these kits. Just a quick question, how do you know where to set the dial? Or is it trial and error, riding then tweaking till you get what you think is the best peformance? I only ask as i wouldnt really know what the bike is doing at any one setting, (apart from smoothing out the power delivery that is. )
Mark:o

The best setting I found was at the 5 O'clock position, but you can adjust it to were it suits you best and without any damage, if you have it to rich then the worst it will do it feel bit boggy at the bottom end.

Thanks guys:hello2:

A noob question. With the o2 eliminator on and turning off the fuel mod, the bike will run according stock fuel mixture? Or?

Yes it will.

Just reached the point where the flashing fuel light has come on and by my calculations thats 55mpg. Thats with the mod dial set at the 6:00 o'clock position. In the main thats short runs to work,negotiating town traffic and driving the engine a bit harder than i normally would.

Is that even possible with a maximum speed limit of 40mph? :slywink: (I used to live in Guernsey)

What mileage did you get before your fuel light came on compared to before? Just trying to compare apples with apples as with the short trips that's going to effect any comparison to bikes riden elsewhere

Fitted the mod. Quite a pain doing the air sensor blue/black wire due to it not long enough. But feels it pulls better at 5 o'clock. Still testing...:glasses2:

Did you cut the outer black protective cover 1st that is over the two wires, if you slit that for an inch or so then it makes the job alot easier

I have had a few questions about the O2 senor & eliminator.

Yes you can run my fuel mod with the O2 sensor still connected; you are most welcome to run it without the O2 eliminator if you want to.

We have been trying to sort the 07/08 XTX/R’s for a long time with the O2 eliminator. The problem is the closed loop circuit; on the 07/08 models Yamaha have added a few extra variables which we can’t seem to get around at this time & Dyno Jet are working on it as we speak.

On the XT660Z they have used a different ECU to the X & R models & do not seem to suffer from the harsh surge that the XTX & R have, so far the Z has not shown the same problems as the XTX & R models when removing the O2 sensor & using the Kawa eliminator. The O2 eliminator is only there to keep the light off & has no tuning effect at all on the XT’s at all, when you disconnect the O2 sensor it is supposed to run at a predetermined fix state & keeps the A/F ratio at a fixed point, the X & R models don’t fix the reading for some reason, Freez has done quite a few dyno runs showing the A/F ratio on the Z & has shown that the XTZ seems to run much better then the X & R models with the O2 sensor disconnected, but is still not perfect, it is still far better then the standard Yamaha fuel map. I am hoping that by the beginning of next year Dyno Jet will come up with a new design O2 simulator.

I have sold a few XTZ mods so far & have had 100% feed back that they are working fine without the O2 eliminator.

Hope that helps explain things better.

Definately. I could only pull out the whole connector an inch or two from under the fuel tank. Lucky thing I have small hands...:icon_tongue:

One day when I can get my hands on a Z I will look to see if we can cut the air temp wire near the ECU to make the fitment a bit easier.

ive gone through my 2nd tank of fuel and hit the flashing fuel indicator at 192miles. so still around 55mpg. Prior to fitting the mod I was getting around 226 miles, but to be quite frank I don't mind sacrificing those extra miles for the gains in performance. Ive been running the mod on the 6:00 o'clock position which i'm happy with. I guess fuel economy would improve if it was at the 3:00 o'clock, but I havn't tried that yet. But as you may know Island driving is a lot of stop starting and I'm normally under 5000 for a lot of the time.

got it today, Thanks Kev..... will fit it all later :happy6:

Remember to Cut the Blue/Black wire ONLY not both :eusa_whistle:

what do i do with the other one then? i thought you fitted both onto the conector block??????

You leave the other wire intact, snip the blue and black one and connect both end into the connecting block one in each hole at the same end, then connect the mod wires to the other end so you are basically making a loop.

PM me and I will phone you

First of all... a big thanks to uncle ricky... cheers mate, you where a great help.

Well, just got back after fitting my dna top and K&N filter along with the Kev fuel mod.... its very easy to fit it all, and once uncle ricky told me about the wire cutting it was done in half hour..... anyway..... the power is very different, its like a different bike, very very happy, thanks KEV....

Glad to be of help :slywink:............., just don't ask me to text:hippy2:

that bad ah.... :014:

Thanks Rick, you have just been made my technical assistant with the XTZ fuel mod.
:eusa_whistle:

Do I get a certificate :walk1:

You get one of these from me. :HappyRoll_ANPIUI:

is the pot inside the same 0 -1K ohm as used on the "x" model ??

anyone measured the resistance of the O2 eliminators ?

Cheers

well i had abit of time spare this afternoon, so i fitted the Kev mod and DNA Filter and top...i gave it a run around and i'm well chuffed, nice bit of induction noise mixed with a little more punch has transformed the Ten's ride...it no longer feels asmatic and adequate...so thanks Kev quick despatch from Aus

Gaz