30 day money back guarantee. You should try it. I have a Dynojet Optimizer so I don't need it.

 

I have not mentioned anything on the 09 forums lately as no one was interested at that time when I offered testing at the beginning of this year, I did not own a 09 then.

Yamaha MT09 FZ09 Tracer Kev Mod O2 sensor controller | kev mod

If you find your Address is not supported at Checkout please contact me & I will send you a PayPal invoice.Helps to smoothen out your ride in the low & mid-range rpm's.Will only work on your bike if the ECU is un-flashed with original factory mapping.FZ 09 2014 to 2016 models MT09 2014 to 2015...

www.kevmod.com.au

I am not here trying to sell anyone this mod, the topic has been brought up & I wanted to get the story straight from the beginning, I never promote an of my mods, I let riders tell their own story & feedback from using them, there are 9 riders using the mod at present in Brisbane Oz, I have sent test O2 controllers to the UK & USA & will get their feedback when they are able to test them when things warm up.

If anyone wants a O2 controller they can be bough off EBay by searching Yamaha MT-09 FZ-09 MT09 FZ09 O2 Controller

I designed & built them & the closed loop mapping is richer than Dyno jets O2 optimizer as I also have a PCV & Optimizer on my bike with a custom map, when I data logged Dyno jet O2 optimizer it was not at the indicated 13.6:1 on my bike, it is around 13.9:1/14:1 with the AIS blocked off, my controller sets the sign wave voltage to approximate 13.6:1 to 14:1 in the closed loop. I built this mod because I own a 09 & wanted a smoother ride even though I have my own custom PCV map. I welded in a second exhaust bung to read the A/F ratios correctly using a wideband sensor & one od Dyno jet data loggers.

With custom PCV mapping on my bike + an O2 optimizer I was not happy with the closed loop mapping at part throttles so I started data logging the A/F ratio over the past 1000kms, from those results I built my own O2 controller at a different closed loop A/F ratio with smoothness in mind, the mod works well & like all the mods I build all come back with a money back that is how confident I am the mod works, I am a qualified motor cycle mechanic & no guess work has been done here, I have all the facts to back up anything I say.

It is the only mod out there that is able to control the closed loop mapping as a stand along mod, you have to buy a PCV to get a O2 optimizer. This mod is not a performance mod it gets rid of the emission control poor mapping that 99% bikes come with & the results of correcting this lean closed loop area is a smoother riding bike in the closed loop areas.

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I also use an auto tuner, custom maps (plurel) with a switch to run either a map or the auto tuner.

 

I like what I have read about this...Is it really needed for the 2015 ?

 

The O2 controller has been tested with the latest 2015 model & works fine. As mentioned Yamaha have not address the lean 14.7:1 A/F ratio in the closed loop it is there for emission control, at 14.7:1 all the hydro carbons are burn off which is great for the environment, as in power we lose lots of torque at 14.7:1, when we correct that lean closed loop A/F ratio we pick up better throttle response. In most ECU mappings there are a few trim tables, F table= TPS/RPM, L tables intake pressure/RPM for the open loop map & they use the L trim tables for the closed loop mapping, so the closed loop A/F ratio is determined by air pressure verse engine RPM verse output voltage from the O2 sensor, I am modifying one of those parameters to change the closed loop A/F ratio.

If there is anyone in Brisbane or surrounding areas that wants to try a O2 controller mod out before buying one pop over to my house & I will fit one for you to try, it only takes a few min to work out if it works or not.

 

If you don't quite follow all the technical jargon....I can tell you for a fact that 13.4 to 13.5 closed loop makes a HUGE difference in the way a bike runs and behaves on the on-off throttle transitions. He is correct when he says that the bike will run WAY smoother. However the EJK fuel controller does the same thing and is adjustable. I do not know which one would work better or which one would cost more.

 

Just a question how does the EJK controller adjust the closed loop mapping?

Your statement saying the EJK controller does the same thing as my controller is incorrect, my controller can not map the open loop mapping at all like a EJK, PCV or Flash Tune does, my O2 controller maps the closed loop circuit where the 3 mentioned tuning devices can not adjust the closed loop mapping without an O2 controller interface.

You are correct in saying the bike will ride better with the richer A/F ratio.

 

Not sensitive at all just trying to provide all the facts & how every thing works, you did imply (did my controller really control anything?) & I responded. I am not your normal run of the mill modder I take things to the next level & was offering a back round check on the work I do in helping riders all around the world.

Dyno Jet have produced their O2 optimizer & they are sold with their PCV for the 09's & it works as designed in controlling the close loop circuit, mine works on the exact same principle but with a richer A/F ratio. I developed mine & was selling it 12 months before Dyno Jet even brought their O2 Optimizers to market, they contacted me shortly after the release of their O2 Optimizer, I sent them one of my O2 controller to prove my design was different & was not in a copy right breach of their design.

All's good mate lets see what riders say about the O2 controller mod.

 

Just posted a thread about this having just spotted the EBAY ad, brilliant idea and I might pull the trigger on one in the new year, big props to you for looking into this, make sure your IP rights are nailed on this one because if this works Id expect you will sell quite a few of these. Aussies and Kiwis are showing their can do attitude, it a good thing

 

No worries, just waiting for some feedback on the forums with the O2 controller.

 

I have no experience with this device but it sure sounds promising.

Is it adjustable?

what rpm and throttle position are you finding is the crossover point from closed loop to open loop??

thanks

 

When I target an A/F ratio for the retail controller I have an adjustable Controller it is dual channel so I can do V twins as well here is a photo of it on my 1290, I only used one channel to do the 09.



Using my data logger with a second wideband O2 sensor I can see exactly when the closed loop comes in, as standard the A/F ratio shoots all the way to 14.7:1 from around 13.4:1 when entering the closed loop so it is easy to see, depending on engine load the closed loop can be seen to change from 2000rpm upwards I was using Dyno jet data for the 6000rpm change over. I have concentrated more on the closed loop A/F ratio to find that sweet spot for smoothness. I don't sell the adjustable Controller as it is very easy to over fuel the bike with this mod & damage the cat.

To check the O2 controller offset can be done using an oscilloscope, one channel on the OEM O2 sensor output measuring voltage & the other channel on the O2 controllers out put voltage, oscilloscope scaling set to 2V & 10mili seconds, the sign wave voltage signal must be in uniform to each other & timed correctly but with a lower output voltage from the O2 controller which is sending a leaner voltage signal to the ECU than it really is.

I have one 09 here in Brisbane with a remap + full Carbon Akra running the O2 controller & it has improved the rider ride in smoothness.

 

i should be getting mine in either today or tomorrow, i'll post back with the results.

 

Mine is on its way. Looks like this will cover the last part of the fueling problem. I have a EJK controller , M4 and K&N filter on now. But as stated already this only covers the open loop running. This O2 controller will complete the fueling as it takes care of the closed loop riding. We all do a lot of miles in closed loop that is to lean A/F. Motor should run cooler and smoother with this O2 controller. I will let you know. Live in Colorado and it is covered in snow right now.

 

One guy has commented he feels his 09 is running cooler I have not confirmed this as yet, the KTM 690's do run cooler with the richer mixture, I have been running a simular Controller on the KTM 690's for a while now with 100% positive forum feedback. 2012> 690 SD O2 controller mod. - KTM Forums: KTM Motorcycle Forum

 

Anytime Baz always up for a ride, Basil had the very first 09 O2 controllers running on his MT a year ago Dec 2013, we knew then the mod worked & I could remap the closed loop circuit.

 

Can we here on the sight get a special discount for a short time period ?

 

I am only offering this mod on EBay at the moment, I have made a batch 09 O2 controllers & will see how they sell, no use becoming a supporting vendor & selling them here if there is no interest in a O2 controller, which I have across before on other model bikes & forums, a few were interested then the mod died off & 2 years later the mod was the latest craze again so lets see how things go. I have already given away 5 of the controllers around the world for testing with free postage no cost to the rider.

I am not a company like some of the other vendors & have only a small mark up on the mods & less EBay fees 10% on selling price, PayPal fees 10% on selling price & less the tax I have to pay to the Australian government 37% on the profit of every mod that I sell + there is cost of the kit where I import most of the parts from over seas, in the end there is not much left for me, each mod takes around an hour to make.

On other forums I offer the mod less the EBay fees if bought directly from me & can combined shipping which saves quite a bit of money. I build the mods as pocket money & a hobby I like the challenge of trying to make a bike run smoother, I also build many performance mods for KTM's with proven back to back Dyno runs but have not gone there on the 09 as yet.

Lets see how the coming weeks unfold & we will go from there.

 

I am only offering this mod on EBay at the moment, I have made a batch 09 O2 controllers & will see how they sell, no use becoming a supporting vendor & selling them here if there is no interest in a O2 controller, which I have across before on other model bikes & forums, a few were interested then the mod died off & 2 years later the mod was the latest craze again so lets see how things go. I have already given away 5 of the controllers around the world for testing with free postage no cost to the rider.

I am not a company like some of the other vendors & have only a small mark up on the mods & less EBay fees 10% on selling price, PayPal fees 10% on selling price & less the tax I have to pay to the Australian government 37% on the selling price of every mod I sell, then there is cost of the kit where I import most of the parts from over seas, in the end there is not much left for me, each mod takes around an hour to make.

On other forums I offer the mod less the EBay fees if bought directly from me & can combined shipping which can save quite a bit of money. I build the mods as pocket money & a hobby I like the challenge of trying to make a bike run smoother, I also build many performance mods for KTM's with proven back to back Dyno runs but have not gone there on the 09 as yet.

Lets see how the coming weeks unfold & we will go from there.

Thanks

 

I just fitted and briefly test rode Kevs O2 controller and I'm impressed. The throttle response is much smoother in A mode. Very small changes in position are no longer abrupt and the fueling is nice and smooth. Nice one mate, Cheers.

 

Thanks for your feedback, it does make the bike more rideable in A mode.

 

I would be interested to know how it affects bikes that haven't had the OEM reflash... I would imagine it would help smooth things out?

 

There are still gains to be had by correcting the closed loop mapping with any of the maps, most of the bikes here in Brisbane that I have fitted the O2 controller to are still running the old 2014 flash, there are 4 of us running the latest flash & the O2 controller, it works on the old flash, the new flash & the 2015 models, all 3 variants have been tested with the controller.

 

the o2 controller really smoothed out the closed loop. no more bucking and surging trying to hold a smaller throttle opening. surprisingly i haven't noticed any change to my fuel economy, still getting around 40mpg.

nice job kev.

 

Thanks for your feedback bobby.

With the closed loop at 13.6 to 14:1 the motor is producing more torque at a constant throttle opening than at 14.7:1, you should have a lessor throttle angle to maintain the cruising speed with the controller than without it. 14.7:1 is no where near the best fuel consumption, at 14.7:1 is great for emission & burning all the hydrocarbons but the motor runs with reduced torque.

 

I'm very interested in purchasing your o2 controller seeing as how it will compliment my pwr commander and akra exhaust perfectly. I do have one question though, I'm by no means an expert in this area but is it possible that yamaha could make a change in their flash that would address the same issue your o2 controller is fixing? If yes, how practical is it that they address this fix soon?

 

Yamaha have addressed the snatchy throttle in their latest map release by altering throttle mapping & a few other bits, but have done nothing to the closed loop circuit the reason I know this is because I data logged before & after the latest re-flash to see if any work was done to the closed loop & the A/F ratio still sits at 14.7:1 in the closed loop for both old & new maps. I doubt they will ever touch the closed loop mapping because of emission control laws, it would not pass a sniffer test if it was richer than 14.7:1.

I have been making these O2 controllers for many years now & for other Yamaha models & Yamaha have never run the closed loop richer than 14.7:1.

 

Thank you for the quick response, and I just ordered one off of ebay from you. I can't wait to try it out.

 

It will be in the mail in 2hrs time, 99% of the time I post within 24hrs & in your case within 8hrs.

 

More controllers?

I've been following this since you first posted and I am interested in purchasing one of your controllers. I am currently running the EJK and would like to add your device to my bike. I just visited your Ebay page and the listings for the 09 all say "Sold". Are you planning to offer more? If so please PM me.
Thanks

 

I've been following this since you first posted and I am interested in purchasing one of your controllers. I am currently running the EJK and would like to add your device to my bike. I just visited your Ebay page and the listings for the 09 all say "Sold". Are you planning to offer more? If so please PM me.
Thanks

Just listed another one on EBay: Your EJK will map the open loop & the controller the closed loop so you will have a perfect world.ccasion14:

 

Yes this thing sounds like a no brainier...works with everything...I'm in for one also !

 

Just happened to check your Ebay store and caught a fresh one. Thanks for getting one listed so quickly. We have over 40º F today in Alaska, so maybe I'll be able to test ride it sooner than I had hoped. If our weather gets back to normal winter time temps, it will be at least another 3 months before I can put her on pavement.

 

Wooo Hooo just got the newly listed one...Thanks

 

Got it