Gv125s service manual
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Evening all!
Do any of you lovely people have/ know of a source where i can find a service (not owners, but a service) manual for the hyosung gv125s (2021 euro5).
Im having many issues here, mostly electronical and i need statistics for continuity tests, the only place im going to find this is a service manual, well i hope atleast. Please please someone get back to me.
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Hi all.
Ive bought a used 2021 Hyosung gv125s. It has been neglected by the previous owner and i am trying to get it into shape. It has 12000 km. I did oil change, spark plugs, etc. I need to check the valve gaps, but no dealer/service in Poland has the values (or they dont want to tel) either way, a have 400km to nearest dealer and ther is no way im traveling that far π Can anyone can provide those values?
Thanks in advance.
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Hi all. Ive bought a used 2021 Hyosung gv125s. It has been neglected by the previous owner and i am trying to get it into shape. It has 12000 km. I did oil change, spark plugs, etc. I need to check the valve gaps, but no dealer/service in Poland has the values (or they dont want to tel) either way, a have 400km to nearest dealer and ther is no way im traveling that far π Can anyone can provide those values? Thanks in advance.
I have a service manual, do you have am email i can send it to you on?
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it is too large to send via email, will try upload it here after i am done with work πΒ
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it is too large to send via email, will try upload it here after i am done with work
How’s it going? I could realy use the SM right now. Im stuck and dont want to do any guessing with this π
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it is too large to send via email, will try upload it here after i am done with work
Send him a PM so that he shares his email privately,Β i had to delete the email address on here to protect his privacy.
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INTAKE CLEARANCE = 0.08
EXHAUST CLEARANCE = 0.11
On ice cold engine.
I will make a special topic soon on the forum that has the service manuals in different languages as i am collecting them slowly and reading them for accuracy incase there is printing errors by who ever was writing the manuals for Hyosung lol
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Thanks Marcel. Is the regulation like on one cylinder carb ones? By a screw?
“Regulation?”
I didn’t understand this part sorry to ask again! -
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Sorry
I mean adjustment. 
Yes it is like adjusting tappets on a HONDA CG125 , so the principle is very similar when you open your covers and you also see the CG125 ,Β Β and also look atΒ Yamaha YZR125 engine 2008
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Hmm…3 valves/cyl…Β Liquid-cooled, 6-sped-box, EFI? what else differs from the GT-engine? Is there a similar 250?
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... π
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Different specks on various sites… but I see it is an all new 60-degree V-engine, vs the older 75-degree…
Old and grumpy,(?), have fairly wide engine & tuning experience, "restoring/resto-mod" on cars & mc, worked as electronic tech. (retired).
GT125R - sold. New (used): 2012-GT250R-efi (sold)+ 2017-GV-125C (sold) - got my old 2018-GT-125R back... π
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Hyosung still makes 75 deg engines for 250cc for Japan only nowΒ (so far)Β Β aka GV250DR
All future 125cc vtwins are the same as the bobber 125 that has come out in 2019 , EFI and Liquid cooled.
300cc is the global replacement for 250cc , it is still 8 valvesΒ , but 125cc is 6 valves (strange) but i think they did it for cost cutting , ease of maintenance because 125cc is very popular in EU and UKΒ , than the big sisters and I can see why have 1 central rocking arm (primitive tech) is easier than have 2 cam shafts with bearings on each cylinder like our old 125cc
I think our old 125cc was better but over-engineered!
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