Tag Archives: YZF-R125 tuneboss

Northcust becomes UK/EU distributor for Tuneboss ECUs \o/

June 10, 2025 northcust Leave a comment

Ok so I’m quite excited about this. It’s been in the works for coming up to a year now but till we reached a particular point where we were both happy, I’ve had to keep things kinda under wraps.

Several years ago, sparked off by a conversation with Legend of Legend’s Garage (who used to do a fair bit of R125 stuff), I learned about Tuneboss ECUs, which seem to be quite popular in the R125 racing community (in europe anyway).

I got in touch with Tuneboss but since the previous ECUs were a limited run there were simply none to be had.

3 years pass and then I get an email asking if I’m still interested in buying a few ECUs. At the time I was just looking to buy 2 or 3, mostly for my own usage but perhaps for a few other friends if they were interested.

Either way, we got chatting and things escalated and whilst the UK/EU market is small compared to the Asian market, they wanted to have a presence here.

image shows an A4 plaque which reads "Tuneboss Authorized Distributor, UK & EU"

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DIY-Dyno, Yamaha YZF-R125

Project Dyno: Calibrating and test runs

April 6, 2025 northcust 2 Comments

In this video I start off riding for a bit while I give a bit of background about the dyno, why, how etc, and then we do a few runs with my mint, bone-stock 2019 R125 to try and get a feel for how to actually “do” power runs (I’m not a dyno engineer, just a nutter with a welder and little respect for my own mortality) as well as *hopefully* somewhat calibrate the dyno’s readings to match the expected power output of the bike we’re testing (2019 Yamaha YZF-R125, which should have 14.7hp).

After that i ride for a bit more and try to draw some conclusions from the tests and figure out next moves. I also have a bit of a catchup on other stuff that’s been going on, and what might be going on in future.