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May 25, 2025 at 2:58 PM #19624Bike Model = : GV250ei
Just bought this today in hopes of getting it going.
have just connected power to the starter solenoid and it turns over but no spark.
what should I do from here or test
and how do I insert images ?
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May 25, 2025 at 4:16 PM #19626
Where it says “Add Media” on top of the reply box here , thats where you upload pictures 🙂
What ECU does it have ?
Do you get a flashing Fi light on the dash? How many sequences?
Eg. 10 blinks _ pause _ 5 blinks _ pause 4 blinks = that’s 10 , 4 , 5 and it repeats the same sequence , we can then use this sequence in the manual to locate a specific error code and why (manual is in the forum for download, it explains how to trick the dash to give you a blinking error sequence)
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May 25, 2025 at 4:43 PM #19628
Hey there.
ecu:
S&T Motors
GT —250GIN
S&T Motors PART NO:32900H88600
S&T Daewoo PART NO:ECO- 08K002
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unfortunately this one didn’t come with the dash 🙁 so not sure that to do there,
also just got curious and opened the cover to look at the stator and it looks like it was hit with something and was damaged
that could be the cause
and I’ll just for Clarification I have the engine and wiring harness with only the ecu
would I need a cdi?
also when I click on the insert media button it’s asking for a source? Like I have to type something in?
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May 25, 2025 at 6:44 PM #19632
Strange,
When you click “Add Media” on your Phone , click “Upload” button as shown below:
Then find the source of the picture (In this case, navigate to your DCIM/CameraPictures Folder in your phone)

As for your GV, if there is no display cluster , it will run without it but ofcourse you need to see what is happening though. Do you have a local breaker where you are to find a wrecked Hyosung GV250 EFi to get its dashboard? And possibly a spare ECU.
Since the bike is EFi , it uses an ECU only , so no need for a CDi (for carb models only)
Based on your ECU, you have a 2009-2012 model which has a super super rare ECU (that ECU is not made anymore by Daewoo, hence Hyosung upgraded their harness and ECU to Delphi Electronics after 2013+ – I hope that ECU of yours is intact.
If the stator looks damaged, that could be a source , check the flywheel isn’t damaged in any way before it kills the next one as there is a very narrow gap between the stator and flywheel when it spins.
Hope you are able to upload a picture from your phone/pc to show us ?
If not , alternatively upload pictures to imgur.com and copy the “BBCODE” —> come back to the forum –> click “TEXT” (next to visual blue tab) in the reply box , then paste the BBCODE here. The forum will fetch the images remotely where you uploaded to imgur.com
I will do my best to recode this site again so its easier to make uploads here.
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