250r update and mods, any other suggestions

Hellonwheels said:

Great video. I learned that at full throttle you're running open loop on a bike, so the wideband O2 sensor isn't going to be as useful as on a car.

Click to expand...

Yes BUT...Sorry! Maybe you did not really understand the explanation?
The point is:
1. The motorcycle injection sys does not have the same effect it does in cars, because in cars the injection is directly into the combustion chamber, and in motorcycles (because of the high RPM) the injection is into the suction manifold(to the Throttle Body).
2. Since the injection in motorcycles is to the intake manifold(Throttle body), and since the spraying of the fuel in the carburetor is also carried out in the intake manifold, That's why there is a similarity between the two devices in motorcycles: Injection Vs' Carburetor.

3. In injection the fuel is flow by the pressure created in the fuel pump.
In carburetor the fuel is flow by vacuum effect (a passive mechanism that works according to Bernoulli's law).
4. The carburetor works in an open control circuit, if there are changes in atmospheric pressure (cold day versus hot day, riding in the mountains, or riding in the valleys ...) then the operation will not be optimal, and sometimes the main jet will need to be replaced.
The injection system(EFI) has a closed control circuit. The amount of fuel is determined by a number of parameters measured by sensors: oxygen, throttle angle, temperature, pressure, and RPM. The data is collected, and is used as a "Map" for all other engines that are mass-produced. The map is burned in the memory of the engine computer(ECU). Original OEM Engine Control Unit (ECU) have no reprogramming capability.
Thanks to the "Map", the engine automatically adjusts itself to a wide range of situations (hot, cold, etc ...)
5. It is not enough to buy a ECU kit that gives you the option to program the map you want preference for:

• fuel economy,
• or preference for high power,
• or preference for high torque,

and you need the expensive equipment that will allow you to do it yourself. So whoever wants it should go to a mechanic who has this specialty and he has the required equipment.
6. So far I have only talked about a change in the computer(ECU), any other change that is made to improving the power, affects the parameters of the amount of fuel and in order to enjoy it to the fullest you need to calibrate the "map"(ECU).

DannoXYZ said:

I suspect hardware boxes have serial# embedded and free software checks back to mothership to verify serial# is validated.

Click to expand...

YES - I understand that AliExpress kit includes software burned into a CD that matches their kit. Other software will probably not fit into AliExpress hardware.
The problem may be elsewhere, and it's still a problem:
The kit does not include
an adapter\connector, for our CBR
There is a general connector, pin to pin, so the connection requires additional knowledge (which pin to connect to), and another possibility of errors and damage along the way.

DannoXYZ said:

Wouldn't hurt to try.

Click to expand...

YES - At reasonably priced, currently 75 USD...(LINK)
Need to read reviews, need to study the subject (there are videos on YouTube) ...
For amateurs who do not want, or can not make expensive investments in professional equipment, this KIT seems to me very nice. Anyone interested in tuning is worth asking and checking this out.

DannoXYZ said:

what are you going to do with it?

Click to expand...

In my particular case, a second hand motorcycle, with a history of neglect,
Its might be worth seeing that the map is the right map, and if not then raise Honda's default?

DannoXYZ said:

How would you know what, where to adjust in which direction???

Click to expand...

YES - Will you surprise me one more time? There is a plug-and-play Dyno device, which is connected to the computer (and the sensors), and then you ride with it under the desired conditions, and then the optimal data is retrieved from it, and it is also in reasonably priced?