Website Builder Software
ECU or Electronic Control Unit
is the computer of the motorcycle. The ECU is a closed, so-called black box with a multi-pole connection strip for the wiring harness. The purpose of the ECU in combination with the DFI is to provide the engine with the correct air/gasoline mixture for optimum cylinder filling and thus optimum combustion and power output.
Depending on the throttle position, engine speed, air temperature, air volume and other influencing factors the engine requires a different amount of air/gasoline. The ECU uses the sensor values to calculate the correct amount of gasoline to be injected into the intake manifold during the injection process. The correct ignition timing is also controlled by the ECU. Basically the air/gasoline mixture should be in a ratio of 14,7/1.
Due to increasingly stringent emissions regulations
the engine may no longer be supplied with the optimum air/gasoline ratio from the factory. Often the mixture is leaned down so that the measured exhaust values comply with the legal requirements. As a result - for example - the throttle response at low engine speeds is no longer as clean or the engine revs up somewhat more slowly.
Why do you always find different performance specifications at the tech specs?
This is due to the fact that many countries have different regulations for registration on public roads. For the ECU this means that it is programmed differently to meet the requirements. And this is the reason for the different performance specifications. In the course of further development and newer specifications for approval there are a variety of different ECU's for the KLX. (country specific)
Website Builder Software