GT125R (2016) startup issues – no spark

[Kieran]

Any help would be appreciated but my 2016 Hyosung gt125r has had starting issues for some time now. I had it taken to a garage cause I don’t have the time or resources to do it at home but The initial thought from the mechanic was the ECU unit after testing it. I believe he has now changed the coils and installed a brand new ECU unit which i had delivered to him and still can’t find a spark. Any help would be greatly appreciated as I can’t really afford to take my bike out of this garage and into another one.

[Simon]

This might seem really stupid but have the interlocks on the clutch and side stand been checked.

[♠️ M77]

As per simon, trust me, the 2016 is very sensetive to signal losses on the clutch handle switch (don’t bypass it) just order a new unit (we have loads)
Also if there is a side stand  = bypass and join wires and waterproof it very hard.

Now , last big war is the stator unit because it has a “PickUp Sensor” embedded in it.  If that thing goes, nothing will spark , it needs the stator pulse sensor in good order
Sometimes it fails randomly due to heat (means unit is now giving up ghost) or simple old age , it’s not doom & gloom , it happens to most bikes sometimes not just Hyosung. I hope it doesn’t come to this but please keep us posted.

[Kieran]

Sorry for the delayed response but I believe this is something the garage hasn’t tried yet (stator unit). I’ve been trying to find diagrams and manuals for the bike in order to help me but can’t seem to find any.

As for the stand switch, I don’t think it’s ever been wired in since I got the bike it looks like the previous owner or garages it’s been too have twisted the wires around and stashed them up in the fairings.

I think what I’ll do is leave the bike at mine for a while and save up some dough and eventually get the garage that fixed my electrical problems last time to have a go on it, but mention all the stuff that’s been shared by you guys.

[Author]

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