[P1kachu] owns a pair of early 1990’s Honda’s with custom tuning on their stock ECUs, and after having ... done with an old Advantest R4945A EPROM programmer, which [Tuner-san] supposedly ...

Here is my work (so far...) on reading data from my Honda CRF250L via its on board diagnostics port. This information should be applicable to most "modern" (post ~2005) fuel injected Honda motorcycles ...