Tag Archives: R125 ECU remapping

Dyno update – bugfixing

So as you may recall in my last post I got the dyno running but had some outstanding issues, namely:

  • Roller RPM sensor was glitching and showing 500000+rpm randomly
  • Engine RPM was reading wrong
  • MOI calculations for the roller seemed wrong

During testing I also noticed some other things:

  • that at speed the entire dyno structure was “wandering”.
  • the magnet on the roller wasn’t secure
Continue reading Dyno update – bugfixing

DIY Motorbike Dyno

So as usual, the reason I’ve been quiet is not because I’ve been idle, but because I was working on something and didn’t want to show it till I was reasonably confident it was going to work.

Some recent developments and projects have highlighted how useful it would be to have a dyno to test and tune on. I’ve always wanted one but didn’t really have the space before and hence was going to do an engine dyno, and never quite got around to it. Here I’ve got a bit more room to work with and with the help of one of my sponsors/partners, was finally able to take the plunge and attempt building one.

It took about a month working intermittently in the rare gaps between rainstorms, and because I kept having to wait for stuff to arrive as I realised I needed this or that from ebay. But eventually it all kinda came together.

Continue reading DIY Motorbike Dyno