As you've probably already read in other posts, I created by myself an additional DIY ECU module, which I use to interface the original Honda ECU to the fuel injector. The reason why I added an ECU to regulate the injection timings is that I installed a bore up kit (166cc), which is requiring more … Continue reading "Measuring injector voltage and current"
After installing the Athena 166cc cylinder and piston bore up kit, the Kijima and Daytona air filters, and the Akrapovic carbon racing exhaust, the quantity of air inhaled by the engine has been increased. As explained in other posts, in a gasoline internal combustion engine, it is necessary to inject the correct amount of fuel … Continue reading "Electronic Fuel Injection (PGM-FI) of the Honda CBR125R"
As many people already know, an engine is a system which transforms chemical energy into mechanical energy: an engine receives the energy from one or more types of fuel (for example, gasoline, in most motorcycles); this energy is transformed into mechanical energy (mechanical work at the engine shaft) and heat by mean of combustion. In … Continue reading "How PGM-FI Electronic Fuel Injection works"