Forums 🚥 PiT STOP 🔧 Hyosung Technical Help Gv 125 cuts out when throttle applied
- This topic has 6 replies, 4 voices, and was last updated 2 years ago by
Graham Walker.
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Dec 24, 2023 at 4:54 PM #12029
Hi guys i have a 2007 gv125 and the engine dies when the throttle is applied. Any suggestions on a fix or cause please? I’m not mechanicals minded and have no idea lol
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Dec 24, 2023 at 5:06 PM #12030
It’s going to be jets in the carb blocked up with something
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Dec 24, 2023 at 5:48 PM #12031
As per simon 👍
Can add any history and things that have been done to bike to make it behave less than factory standard or any mods that would affect its running behavior ? Year ? total miles?
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Dec 24, 2023 at 5:50 PM #12032
As per simon 👍 Can add any history and things that have been done to bike to make it behave less than factory standard or any mods that would affect its running behavior ? Year ? total miles?
I don’t think anything has been done orher than maintenance. I have only owned for a week. Its 2007 and about 50000 miles
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Dec 24, 2023 at 5:51 PM #12033
Although I did try to fit a usb charging port so I don’t know if that could have caused an issue
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Dec 25, 2023 at 8:00 PM #12040
Take a look at the tutorial section of this forum, find the 2x topics that discuss removing the airbox and inlet manifolds. Once you read all that , is this something you can do at home ?
Then we can either see if its good for you to self-clean the carbs , check jet sizes , etc or if its best a local mechanic can ultrasonic clean them for you, then you fit new jets etc
Also, this topic is a very good read below:
And this one too
Happy new years ahead and enjoy your present holiday break!
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Dec 29, 2023 at 5:30 PM #12053
Had the same issue, however seller told me it had your issue. Marcel resolved my issues, basically remove carburettors and clean thoughly with card cleaner and fine wire to ensure all carburettor orifices are not blocked. Un plug EGR Valves and blank off including suction pipe from manifold. I was still loosing power at full throttle up hill so was advised to move the needle circlip from 3rd grove to 5th. Now running perfect 70mph no problems.
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