ecu flash

[Sand bags]

Had a little search on here but couldn't find much.

 

Got an mt07 2019 with full exhaust system, had it on there for prob 2 years now. Considering getting an ecu flash after reading a few different things online.

Main points being:

 

• air fuel mixture should be corrected - apparently these bikes come out the shop already running lean to meet emission standards. Throwing a full exhaust system on there (or upgraded filter and air box....or both) increases the air take and messes with the fuel air ratio making it run even more lean, hence all the much loved pops and bangs 
• letting it run lean, means the engine runs hotter and could apparently damage your valves
• should also optimise the performance based on your mods, and now that it breathes better you can correct the ratio and gain some horses or torquages

 

my main reason is to reduce any valve damage tbh, and if i can get some extra fun in the means of torque then thats great also. When I first got my pipe on I did notice some low end torque loss, which i believe is something to do with some loss in back pressure etc. still don't quite understand the full science of that yet.

I love my exhaust system, sounds great. Also, "loud pipes save lives" is very much true! Keeps me seen/heard... which is most important after previously having a careless pedestrian run out into the road, looking the other way with earphones on, knocking me off my bike.

 

HOWEVER, i've also read that it can cause a MPG hit, which nobody wants to hear in todays climate. I don't even know what my mpg tbh, but i know its fairly good still despite the cost of a full tank creeping up. I've read online people going from 60 to 45mpg, which sounds like quite a hit.

 

SO, i just wanted to see if anyone on here actually had a flash done and could give me some feedback. Mt07 with full system would be ideal, but appreciate all replies. thanks

[Bender]

If its for fun a mpg hit is irrelevant, if you want mpg certainty swap it for a 125  

 

A good map will iron out any issues with regards mods, it's not going to drop 15mpg unless your mods include a turbo or supercharger or you just red line it everywhere for the sake of it, in which case your already down 14mpg.

 

[Stu]

I dare say that the MT will auto re learn the air to fuel ratio of what the bike has fitted and it will be running OK in relation to how it left the factory ie it will be running the same air to fuel ratio it was made to run. 

 

These ecu's are pretty clever these days and can self adjust and that's what the 02 sensors are for. 

 

Having said that every bike will benefit from a remap and would be totally worth it! 

 

I'm going to be getting my ecu remapped eventually 

[Mississippi Bullfrog]

It's not entirely clear if you're talking just a replacement exhaust system or also air box modifications.

 

If you're going for the air box mods then you would benefit more from a remap. 

 

Many modern bikes run silly lean settings at low throttle inputs but you can improve that issue with a booster plug if you're getting snatchy throttle symptoms.

 

 

[Sand bags]

2 hours ago, Stu said:

I dare say that the MT will auto re learn the air to fuel ratio of what the bike has fitted and it will be running OK in relation to how it left the factory ie it will be running the same air to fuel ratio it was made to run. 

 

These ecu's are pretty clever these days and can self adjust and that's what the 02 sensors are for. 

 

Having said that every bike will benefit from a remap and would be totally worth it! 

 

I'm going to be getting my ecu remapped eventually 

 

yes came across this also, as like you said it is the 02 sensors job. Think i'll go for it anyway to unlock its full potential.

1 hour ago, Mississippi Bullfrog said:

It's not entirely clear if you're talking just a replacement exhaust system or also air box modifications.

 

If you're going for the air box mods then you would benefit more from a remap. 

 

Many modern bikes run silly lean settings at low throttle inputs but you can improve that issue with a booster plug if you're getting snatchy throttle symptoms.

 

 

 

hello mate, yea I only have exhaust system atm. I don't think i'll be upgrading any airbox systems....maybe I'll change the lid to something more free flowing, but im also in the midst of researching that as its unclear if there are any real gains.

 

is that plug something like the power commanders?

[Mississippi Bullfrog]

https://www.boosterplug.com/shop/boosterplug-yamaha-mt-07-570p.html

 

You can buy them from UK suppliers if you look around. I added one to my Bobber and it transformed the low speed engine response.

[Stu]

I would rather go with a remap than a booster plug. 

 

With a booster plug you are just trying to fool the ecu 

 

Where as with a remap you alter the full fuel table including ignition and you can also alter a lot more while in there too 

[MikeHorton]

What about this sort of flash? 

[billy sugger]

1 hour ago, MikeHorton said:

What about this sort of flash? 

Surely you mean flash floor cleaner, it does the impossible 

[Sand bags]

9 hours ago, Stu said:

I would rather go with a remap than a booster plug. 

 

With a booster plug you are just trying to fool the ecu 

 

Where as with a remap you alter the full fuel table including ignition and you can also alter a lot more while in there too 

 

yea i have read that ecu tends to do a better job, but with a power commander (or similar) you can just remove it and your back to stock. Saying that, most places offer unlimited flashes after the initial payment (in case you make further mods)

 

12 hours ago, Mississippi Bullfrog said:

https://www.boosterplug.com/shop/boosterplug-yamaha-mt-07-570p.html

 

You can buy them from UK suppliers if you look around. I added one to my Bobber and it transformed the low speed engine response.

 

interesting, havn't seen this one before. About £140. How does it work, you they have maps you download online? Did you find one specific to your mods?

 

Also, what did you find with the mpg afterwards?

7 hours ago, MikeHorton said:

What about this sort of flash? 

i contacted a flashing company, he said tbh i won't see much gains in power, would mostly be refinement in terms of getting smoother throttle response and less engine braking. TBH neither of those bother me, and the engine braking it handy when zooming around london, extra stopping power and less wear on the pads

 

i need to hear from somone with an mt07 whos actually done it and doesn't suffer from placebo syndrome

[Stu]

1 minute ago, Sand bags said:

yea i have read that ecu tends to do a better job, but with a power commander (or similar) you can just remove it and your back to stock. Saying that, most places offer unlimited flashes after the initial payment (in case you make further mods)

 

Speak to a tuner that knows these bikes and they will advise the best course of action 

 

But a decent tuner will use software that will self learn no matter what mods you make it will tune to the A/F ratio that it needs to be so changing something won't affect anything as the ECU will re learn 

 

Quote

ECU Remapping

 

We call ourselves 'remappers' because that is the colloquial term that everyone understands, but actually we write engine management software. This is much more complex, time-consuming work but means we have several advantages over conventional remappers:

 

1. We don't touch the original factory software, so there's no chance of us ruining your ECU. Our software goes onto unused space on the ECU and interacts with the original software as necessary (to allow functionality such as immobilisers, ABS braking, traction control etc.)

 

2. We're not stuck with the legacy of anything the manufacturer creates that's less than ideal in functionality (some manufacturers' software is much better than others).

 

3. Our software is self-learning, so you can change exhausts, air filters etc. without needing the ECU programmed again. This also means that the bike will perform optimally in all climates and at all altitudes.

 

4. Our software is invisible and cannot be seen by your dealer or anyone else, so your warranty will not be affected.

 

5. Customer guarantee, if you are not 100% happy with our work simply come back within 21 days and we will remove our flash and give you a full refund. 

 

http://www.hilltopmotorcycles.co.uk/

 

I am going to be using these guys as they are well known for remapping BMW's  

 

 

[Sand bags]

2 hours ago, Stu said:

 

Speak to a tuner that knows these bikes and they will advise the best course of action 

 

But a decent tuner will use software that will self learn no matter what mods you make it will tune to the A/F ratio that it needs to be so changing something won't affect anything as the ECU will re learn 

 

 

http://www.hilltopmotorcycles.co.uk/

 

I am going to be using these guys as they are well known for remapping BMW's  

 

 

just dropped them an email

 

[Stu]

6 hours ago, Sand bags said:

just dropped them an email

 

 

Best to ring

 

 

[Mississippi Bullfrog]

@Sand bagsthe booster plug is simple, just plug and play. Nothing to download or fiddle with.

 

It just makes the ECU think the bike is running a bit cooler so richens the mix at low throttle settings. At higher throttle input it doesn't do anything so the bike runs exactly as standard.

 

I found it smoothed out low speed running, doesn't affect fuel consumption at all, some people claim a bit more power at full throttle but since it doesn't affect higher throttle settings I think that's just their imagination.

 

I still get a nice burble verging on a pop on the overrun. 

 

The Bobber is a very torquey engine so slow speed snatchiness was an issue. This eliminates that problem completely. 

 

Guys who have air box deletes find a flash is better because they need a total remap. But if you don't take that route a booster plug make resolve your current issue.