Arduino Software for the Fuel Injection controller (Version 1)

In this post, you can find the downloadable version of the software to be flashed in the ECU. After creating the ECU electronic circuit for adjusting your motorcycle Fuel Injection timings, it is necessary to upload the software inside the Arduino Micro. The software which I created is composed by 2 parts: "Tempo" library. It … Continue reading "Arduino Software for the Fuel Injection controller (Version 1)"

Oil change on a Honda CBR125R

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"

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"

Installing Athena 166cc bore up kit on a Honda CBR125R

In November 2015, I decided to change the original piston and cylinder of my Honda CBR125R. There are some bore up kits on the market, at least two: one sold by Malossi, and one sold by Athena. Unfortunately, in Japan, the Malossi bore up kit is not available, so I chose the one sold by … Continue reading "Installing Athena 166cc bore up kit on a Honda CBR125R"

Install a new battery on Honda CBR125R

Yesterday, I finally installed a new 12V battery on my Honda CBR125R. The reason why I did it is that the engine did not turn on anymore when I pressed the starter button. I also noticed in the past weeks that the engine did not start very quickly. Sometimes, after pressing the starter button, it … Continue reading "Install a new battery on Honda CBR125R"