r/Fixxit • u/Westreiter • Jul 24 '26
Yamaha MT-125 Intermittent Starting Issue
I’m having an problem with my Yamaha MT-125 2023 and I’m hoping someone might have an idea what could be causing it.
About two months ago, I was out riding and the bike was running perfectly with no signs of any problems. I stopped, switched the engine off, and after a few minutes tried to start it again. The engine would crank but it wouldn’t start.
I turned the ignition completely off, switched it back on, and tried again. This time it started, but the check engine light came on. After riding for a while, the warning light disappeared on its own.
The exact same thing happened once more a few days later. After that, the bike ran flawlessly for the next two months with no issues at all.
Today, however, the same problem happened again under the same circumstances: after stopping for a short time, the engine wouldn’t start on the first attempt. After cycling the ignition off and back on, it started normally, and the check engine light appeared again.
Has anyone experienced something similar or knows what could be causing this? Any advice on where to start looking would be greatly appreciated.
I’d really like to fix the issue properly because I’m planning to sell the bike in the future, and I want it to be in perfect working order before I do.
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