Changing the oil of a Honda CBR125R is a very simple operation, it requires just few tools, a bit of time (10-15 minutes), and limited mechanical skills. Before performing this procedure, the engine (and so, the engine oil) should be hot enough, so that the oil viscosity is low and the oil can flow out … Continue reading "Oil change on a Honda CBR125R"
Category: Honda CBR125R
Measuring injector voltage and current
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"
Spark plug change on Honda CBR125R
Today I changed the spark plug of my Honda CBR125R. The installation of a new spark plug was very simple, it took just 15 minutes. First of all, you need to remove the fairings on the right side of the motorcycle. There are just 3 screws that you need to remove, please refer to the … Continue reading "Spark plug change on Honda CBR125R"
Electronic Fuel Injection (PGM-FI) of the Honda CBR125R
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"
How PGM-FI Electronic Fuel Injection works
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"