I've just read the manual, it appears that the CBR150 is about 200 rpm higher at idle than the CBR125. I am thinking of getting the CBR150 ECU and cbr150 injector. How much does those cost, and where should I get it?

did you try to remove the o2 sensor lambda, since you have autotune there is no need for the o2 sensor.
the cbr 150 cost around ecu is 160usd here and injector is 55usd

Quote by: reisan

did you try to remove the o2 sensor lambda, since you have autotune there is no need for the o2 sensor.
the cbr 150 cost around ecu is 160usd here and injector is 55usd

I have ordered cbr150 ECU and throttle body now. I have unplugged the original O2 sensor. I am using the PowerCommander autotune O2 sensor to make the fuel mapping correct and to see that my bike gets the correct AFR.

Quote by: 770

Quote by: reisan

did you try to remove the o2 sensor lambda, since you have autotune there is no need for the o2 sensor.
the cbr 150 cost around ecu is 160usd here and injector is 55usd

I have ordered cbr150 ECU and throttle body now. I have unplugged the original O2 sensor. I am using the PowerCommander autotune O2 sensor to make the fuel mapping correct and to see that my bike gets the correct AFR.

okay good, whats yout top speed? mine normal is around 172-173kph but gps holux records it around 146-147kph

Quote by: reisan

Quote by: 770

Quote by: reisan

did you try to remove the o2 sensor lambda, since you have autotune there is no need for the o2 sensor.
the cbr 150 cost around ecu is 160usd here and injector is 55usd

I have ordered cbr150 ECU and throttle body now. I have unplugged the original O2 sensor. I am using the PowerCommander autotune O2 sensor to make the fuel mapping correct and to see that my bike gets the correct AFR.

okay good, whats yout top speed? mine normal is around 172-173kph but gps holux records it around 146-147kph

I haven't received the parts yet, but originally a CBR125 runs max at 120-125km but that is when you are laying down.

i want to experiment with throttle bodies, for cbr 250 throttble body is cheap and available, i wonder if the sensors on the 250 throtlebody fits with the 150, the injector connectors seems different

I have installed the CBR150 throttle body and 150 ECU now. When using the 150 ECU it wouldn't start. I think we can now confirm it has to be something different with the wire harness since the 150 ECU wont work. When using the 125 ECU and and 150 throttle body, it runs at idle. But I'd still have to twist the throttle while holding in the electric starter to make it start.

There is a white painted screw called a idle screw (in the manual) on the throttle body that adjusts how much the butterfly closes at 0% throttle. Since I have to give it a little throttle when starting it, do you think making the butterfly stay a little bit open at 0% throttle would work? Or would that make the rest of the injection system get weird? Here is a pic:

http://postimg.org/image/50rog0t73/

Now the bike starts sometimes and the first time I started it today the RPM went up and down, between 1500 to 2000 RPM (cold start). When giving it a little throttle it stalls, at around 4000 RPM even though the AFR was quite good. Later it idled precisely at 1500 RPM.

Video: https://www.youtube.com/watch?v=rHWMIVaxlGc

Im not sure if the CBR150 throttle body has a compatibility issue with CBR125 ECU. If that is true, I think it maybe will work with a adjusted idle on a CBR125 throttle body with CBR150 injector.

Or

Change to a CBR150 wire warness and use the CBR150 Throttle body and ECU. But i'm not sure if the PowerCommanderV is compatible, I've seen a Indonesian dyno shop use a Powercommander on their CBR150 but I'm not sure if they did some extensive modification to make it work. (Dynojet does not make PCV for CBR150).