Just one more thing from this thread that has worried me...Pleiades mentioned drinking large quantities of Tea, does this mean that I am not the biggest drinker of Tea on the forum. ? I'm on approximately 12-15 mugs a day..more at weekends. Say 100 mugs of tea weekly. I lay down the Tea challenge!! Steve

Do you have shares in Tetley Greatescape?

Twinings Breakfast tea or when in Ireland Barrys Tea !! 20 degrees in Southern England today Desert Racer. ...how's the temp in Australia. ? Steve

High 20's in the day, feel's like its cooling a bit now for 'winter'
Just back from my early morning pleasure cruise to the LNG plant. http://images.tapatalk-cdn.com/15/04...db32860516.jpg

Well best leave there, going off topic a bit & don't want to start WW3 over tea bags.[emoji2]

I just want to say we have never seen a XT burn any valves ever no mater what mods have been bolted to them, even running stage 1 & 2 filters + free flow pipes, with this set up I have personally Dyno tested the A/F ratio's & so did Freeze a Dyno expert from South Africa & the A/F ratios run around ratio 14.5 to 15:1.

But one thing I will argue about & I can prove 100% with Dyno results, at 15:1 the bike will not have the torque or HP compared to a bike running the exact same mods at a richer A/F ratio between 13.2:1 & 13.6:1. Yes the bike will run at 15:1 all day long but at a loss of HP & Torque.

My adjustable fuel mod corrects a lean A/F ratio from hard ware that has been fitted like free flow filters & pipes, the O2 controller corrects the lean closed loop A/F ratio. My fuel mod is a very simple fuel adjuster that does & have proven this so many times, it can correct the A/F ratio by up to 0.8:1 richer, https://www.youtube.com/watch?v=glkdBO8aZm0 if you want the best tuning tools out there buy a PCV & get a custom Dyno PCV map at 6 times the price.

One other thing these XT's do not run rich with all the intake & exhaust mods, I challenge anyone to show me Dyno proof that they do as I have personally Dyno tested every version of XT660 ECU, every single mod ever bolted to a XT including all the big bore kit in varying sizes + stroker cranks + quite a few different cams?

Here is some data logging I have been doing on the latest KTM 1290's, I would love to see how the guys that bag my mods have actually measured & Dyno tested the mods A/F ratio's. http://www.ktmsmt.com/viewtopic.php?f=29&t=6888&p=42781#p42781

MT09's http://mt09.motorcycle-talk.com/forum/mt-09-modifications/1565-kevs-anti-throttle-surge-mod-25.html

I don't tune bikes with the seat of my pants I used the latest Data logging tools & reconfirm all my work on a Dyno, I spend around Oz$2500.00 a year on test mods & custom Dyno PCV maps for different bikes & can prove 100% what I say.

Also say that the XT660 ECU can learn is the biggest load of rubbish I have every heard, if you under stand the X'660's mapping & how all the functions of a XT's ECU works you would know 100% the man does no what he is talking about. The variable difference would be from the F/L switch trim inputs between the TPS/RPM & the intake pressure sensor/RPM mapping with the valuables inputs going to the ECU's, the ECU learns nothing it is has pre-written mapping & the variables are changed with in the mapping from the sensor inputs.

Well, to each their own, I guess. I ran my Tenere for four years without any engine/electronics mods, believing that suspension etc was the way to go. Mind you, I hadn't done many km in that time, but I'm in no hurry.

However, the low-end snatchiness on/off throttle finally wore thin, so an O2 mod went on. Most of that went away immediately. This is a fact for my bike.

Don't know about any other Kev mods, but based on my experience, I can't see why the others wouldn't work too.

Detractors are certainly entitled to their opinion, but then so am I, and all the members who are satisfied with what they've bought.

:applause: Wunderbar!

Be sure to report back your results when you've fitted them and ridden a few miles. I'm sure you will be more than satisfied...

Kev mods
 

Ok, I finally got round to installing the fuel and O2 mod today and I couldn't believe the difference it made.
It was like riding a proper thumper again, a bit like my old XT500.
Well worth the investment. Thank you Kev.

One questions remains. According to the fitting instructions the fuel mod settings were figured out at 20ish degrees. If I ride in colder weather do I have to increase the setting slightly and vice versa or doesn't it matter?
Also, did you guys wrap the wires of the O2 optimiser in some kind of sheathing or didn't you bother?

Cheers
Nick

My two penn'orth....
 

I would like to add my thoughts to the two questions posed on this thread.
First, I have the Kev fuel and O2 mods, they make my bike feel more responsive and smoother. I think they were worth the money.
Second, tea drinking... I'm a mental health nurse, a professional group renowned for having infinite capacity for tea, and as a student I took on and beat the previously undisputed champ at the very large hospital I trained at. So beware anyone throwing down the gauntlet here.... Just a shame I can't manage the same with beer. Total two pot screamer, me.

Due to the nature of the way the AIT sensors resistance changes with temperature, and the way Kev mod works, you may need to slightly increase the setting if temperatures drop below 10C and slightly decrease it in the unlikely even temperatures go above 30C to maintain the same A/F ratio.

I'm only talking about one increment though. Say you've found that 5 o'clock works best for your set up for temperatures in the region of 15-25C, you'll need to go to 6 o'clock if the temperature falls to 10C or below. I found that I needed to go +2 if ambient temperatures were below 0C.

It's not strictly necessary, but I covered mine with heat proof sheathing which I happened to have lying around.