Quote Originally Posted by 998S View Post
Well, I guess I agree with you, my experience in China makes me indeed afraid that nothing much will come out of it.
Most likely somewhere down the line we are going to hit the concrete barrier, but who knows?
Everything we learn till that moment might contribute to the solution.

Frankly speaking I think that at the end it will be us who are pushing the buttons on the mobile device.
That it is a mobile device make things easier though, your damn bikes are really heavy to ship ....

For those of you who are interested, I chalked up a simple diagram of the fuel system on your bikes.
It is not complete, but it gives the idea of what we are chasing.



You can simply break it down to 3 main streams:
1. The fuel supply on the left, which is just supplying the filtered fuel at a constant pressure to the fuel injector,
2. The Air supply on the right, which does the same for clean air,
3. The control in the middle, consisting of the ECU, with input form the sensors, and output to the injector.

"Inside" this ECU is a fuel map, which is basically nothing else then a value of how much the injector sprays for each position of the throttle, at each RPM.
It can be easily visualized by a spreadsheet, or by a 3-D diagram.





The problem on your bikes is most likely in the left lower area (no throttle, low RPM).
Solution should be to increase the fuel-values in that area a bit, to let the injector spray more fuel.
Simple, and ice-cream earned ...

However, there is one catch.
Your bikes are of the newer type fuel controls, where there is a sensor (AFV) mounted in the exhaust, and measuring the quality of the exhaust gasses.
It kind of "overrules" the fuel map by adding or taking off fuel of the whole map to compensate a "bad" mixture.
I need to find a bit more info on this matter.

Ok, I will handle the technical discussion by email and not on this forum, but give an update once there is something new to announce.

E.
OK, not to overwhelm someone, I once "research" into FI technology from a vendor call 光印电喷，the text article is confusing in Chinese. This is so much sensible to me.
Technical is cool.