"Pay first, then we will help you!!!!!!!!!!!!!!!!"

Cheers, most helpful!

:suicide[1]:

your a star! Strat.

Strat if it something that another member can help you with, there is no problem, I am sure AJT660 is joking however the truth is Kev's assistance is for XT-Supporters only.

Your enquiry about fuelling settings will need Kev's attention as you will need to report to him your current settings and the sympthoms of your bike. You can increase the Co2 to your heart content, but unless you know what you are looking to achieve you could end up making the mixture too ritch and causing your plug to get too wet and burn excessive fuel resulting in excessive sooth in your pipes etc etc...

help me
 

please Kev do you help me i don��t speak english only spanish if you can me help me please answer me in leocolombia1@hotmail.com thank you very much leonardo

....but i can write in english very well http://pages.infinit.net/bluefire/Images/carrot.gif

Leono, please explain to me what help you need maybe if its something me or someone else knows we can help you in the meantime Kev and I don't speak english but there is a spanish forum where a man called nein who is the Administrator also of the spanish section will be more than happy to help you.
But also try asking that question in the spanish forum I am sure someone with your same language might be able to address you to the correct solution.

Gracias :D

Exactly what language is it that you speak in sir :laughing1:

oops typo!! lol I meant I don't speak spanish.... well I can just about catch some of it but not speak it fluently anymore as I used to when I was a kid.

:violent1:

I have now set the CO 5 to 20, is it recommended to mod the airbox that my bike gets more air? Effects the CO entire rev range?

yes and yes :thumbsup[1]:

thanks! :)

What means that? What is lean?

It refers to the air/fuel mixture ratio. The ideal ratio is 13.7.

If there is more fuel in the mixture, the bike is running reach and if there is less fuel, then the bike is running lean. As far as I know, it is dangerous if the bike runs too lean

But if i set the CO setting up, is it still lean? Effects CO entire rev range? Sorry my bad english.

It depends which modifiations you are planning. The CO setting does not affect the whole rev range but mainly the low one but it is enough for reducing the surging at low revs, compensate the instalation of new cans,.....

I was thinking just consertrade on the CO and Airbox mods, like engine breather off, K&N filter, extra holes and CO 30-40 or above. Then maybe some day 2-1 pipe. I not plannig to do any wiring like kevs resistor mod.

Is my plan OK?

Well, If you plan the "full" airbox related mods, then the question becomes more difficult to answer. There are different opinions about that and I think it would be better if I let someone with more mechanics knowledge answer your question.

To kosworth, I suggest powercommander if you do any bigger airboxmods. (Laita mulle yv:t� jos haluat turinoida suomeksi)

Hi Guys
Quick question . I have fitted a set of leo vinci pipes to my 06 xtx and a k&n filter. My bike pops alot when lease of the gas. I did up my co level by 10 units aswell. What am I doing wrong? I have a dns stage 2 filter on the way. I just dont want to buy a pc just too much money for me to spend now.

Thanks

Mike

The popping is normal cause you have better cans and also a better air filter. look on youtube at some of the dyno runs people have posted you will hear they also get this.

http://www.youtube.com/results?searc...&search=Search

My mods so far are:
1)Remus Grand Prix cans
2)Remus Powerizer fuel adjuster
3)Snorkel removed
4)K&N main filter
5)DNA stage 2 filter

I want your advice on where i should adjust the CO1 level.
My initial CO1 was 3...
Thanks in advance guys.

I would say between 15 to 20 for the CO1

Thank you Kev!!!
If i fix the CO1 level at a higher level..e.g. 35,what would be the problem???

Out of interest...i adjusted C1 .... i am assuming this is the CO1 ? or have i ballsed something up .

Hi, please help me kev and Captnmoto .... I am Italian boy and I installed the kev mod with two variable resisters on my xtx 2005.
I would like to know, where is the enrichment mixture when I turn the variable resisters on the air/coolant sensor, ie...... what is the range of engine rotation where the sensors act???? .... enrich down range or high range?
Excuse my bad English ..... bye
Maotheb1ke.

If you bought the Kev mode off the internet from kev you should have a CD that has instructions to help you.

Ripeti le domande in italiano, forse capisco meglio, grazie e non ti preoccupare ti aiuteremo.
Se giri il potenziometro in senso orario tu aumenti il valore della miscela con piu benzina meno aria l'opposto si ottiene in senso antiorario.

Ciao.

ciao Captmoto, volevo sapere in quale zona di regime di rotazione del motore vanno ad agire, ingrassando e smagrendo la miscela, i due sensori di aria e liquido di raffreddamento.
Cio�: al variare della temperatura dell'aria nell'air box, il sensore varia il suo valore resistivo (ohm), dando alla centralina un dato che elaborato gli fa definire la quantit� di benzina spruzzata dall'iniettore. La mia domanda �:
questa quantit� viene aumentata o diminuita a qualsiasi regime di rotazione o soltanto su un range definito? stessa domanda per l'altro sensore....?????
quindi se ruoto la resistenza variabile da 1 kohm, facendo credere alla centralina che ci sono 5 gradi in meno, ingrasso la miscela per tutto l'arco di erogazione o soltanto ad esempio fino a 3000 rpm (low range)? oppure da 3000 rpm a 6000 rpm high range)?????
grazie mille.........ciao, Maotheb1ke.

If you PM me your E-mail address I will send you the full instruction for the 2 pot fuel mod.

Kev what he wants to know is exactly what of the 2 pots does what, which ones increases the fuel and which the cooling, also he asked at was revs do the effect of these pots kick in (?) and whether the effect of the 2 knobs covers the whole range or just a specified range, if I am not wrong the effect is on the whole range, but perhaps you better explain that.

What's the difference between the 2 pot & single pot?

A POT!!!!!!!!!



sorry you asked for that one Denny:bootyshake:

Exact Captmoto!!!!
I want to know this (.... the effect of the 2 knobs covers the whole range or just a specified range......)
Kev Captmoto, do you have the graphic of Stoichiometric ratio relatively to installation of kev mod?
An image like this for kev mod.
Thank you, Maotheb1ke.

Yes we have something similar, have a look here:
http://www.xt660.com/site/node/53

it's all explained in there together with graphs of dyno result with and without the mod.

http://www.xt660.com/site/image/view/89/_original
http://www.xt660.com/site/image/view/90/_original

yes, but there is no stoichiometric ratio..... the most interesting!

Sorry for the slight hijack but.........

Looking at the 2 graphs above it appears that the Kev Mod causes the HP & Torque to come in at about 1000rpm higher than standard, is that correct?


Thanks,


Nick.

No that is not correct, the RPM difference at the start of the dyno runs are different because the reading was started at different times/rpms.

PM sent with details.

Kev, Thanks for clarifying that, thought it didn't look right.


Nick.

Thanks kev; the document is exhaustive.
But I can see the stoichiometric ratio (air/fuel) with kev mod? Do you have the dynamometer graph?

I do not have the print out of these tests, I ran these tests over 2 years ago & did not use link software but used a 4 gas analyser. The Air/Fuel ratio ran between 12.5 low down to 3000rpm the up just over 13.5 in the upper revs with all my mods with the fuel device connected.

With using the Yamaha fuel map you can not change the mapping every 250 RPM like a power commander can do. You can only change the fuelling over the whole range by but adjusting the temp senders down in temp.

With these fuel devices I tried to get the fuelling better in the low revs where we have the main problem with lean mixture, the 04 to 06 bike are still a little lean in the higher range but still safe & better then not having the fuel mod. The 07> 08 models are different again these bikes are lean low down & to rich from 60% throttle so a bit harder to get these one right.

The two pot fuel mod that you have was one of the very first mods I ever made. I stopped making them because I had one rider out of 46 2 pot mods sold make his bike to over heat, he did not set the mod correctly which cause the bike to over heat. I then came up with a different resistor that could be used on the air temp sender & was much safer.