You can see how it adjust the A/F ratio here.

http://www.youtube.com/watch?v=glkdBO8aZm0&feature=channel

http://www.youtube.com/watch?v=0OHzpRrZMnA&feature=channel


My fuel mod self adjusts for all weather conditions as it is wired in series.

Perfect :clap:

Thanks Kev!
 

Just installed the Kev mod. It was really easy to install, really easy to make and it actually gives me the control I needed, not to mention that it cost me 6� to make and even make it neatly (had everything else handy except the box and the resistor).

Current setting is at -5C, but I think the correct one will be around 3-4. I can report the end result here if someone is interested.

I also noticed that I have the 5VK-8591A-00 ecu, so I guess surging will never be completely gone. However, the Kev mod and DNA stage 1 has already made the bike a lot better. Next step is dna stage 2 and starting to hunt for the 5VK-8591A-01 ecu.

Well done mate, thanks for the feed back.

The 01 ECU is money well spent, I have personally paid for 2 of them myself. You cannot use a second hand one as once it has been code to a bike it cannot be swapped over, I know I have a spare one lying on my bench right now I think I will be using it as a door stop.

Use this part number when buying the 01 ECU & it will cost half the normal cost. 90891-30032

what is final conclusion on this Kev mod ?
first, is it supposed to work with o2 sensor or without ?
btw, why should o2 sensor be removed ?
second, is it supposed to be mounted only on airtemp sensor or on all 4 sensors (the other temperature sensor, air pressure etc. - i cannot recall all of them) ?

i forgot: i have xt660r - 2007.

[quote=mnb;139735]what is final conclusion on this Kev mod ? I will let everyone else pass their comments for that question.
first, is it supposed to work with o2 sensor or without ? With O2 sensor connected on your 07.
btw, why should o2 sensor be removed ? So we can control the closed loop circuit for full tunning, but the 07/10 XT does not allow to take full control of the closed loop circuit, we are waiting for a new O2 sensor mod, we hope to have a O2 mod soon.
second, is it supposed to be mounted only on airtemp sensor or on all 4 sensors (the other temperature sensor, air pressure etc. - i cannot recall all of them) ? You only fit it to the air temp sender.

i forgot: i have xt660r - 2007.

tnx

Thanks Kev, fitted my mod and fork spacers yesterday, measured the bars before/after and they now sit 25mm higher when freestanding upright :) I hadn't noticed much surging however I had only done 140km's since new in the past week without any slow traffic riding.

Nice work mate, thanks for your feed back.

How much would You Kev recommend to lower the air temperature on '07 model with aftermarket exhausts, removed snorkel and drilled holes ?

What are (in general) possible side effects of using this mod - instead of powercommander or similar ?

How can one tell if his bike is tunned well with this mod ? By reading the spark plug ? If so, how long has the bike to be ridden, and in what mode ?