Gv 650 an st7 650

[Kristian]

Hello everyone.

aren’t the hyosung gv 650 and st7 with the same engine?

and if you can’t find parts for a gv, can you use some from st7?

such as exhaust system cylinder head etc

[♠️ MARCEL]

Hey,

ST7 is inspired by the design of the GV125C bike , and GV650 tends to be on the “port-cruiser” style.

Not all parts can be changed,  especially St7 is essentially called GV700i.    You will need to be specific on which exact parts you want from an St7?

Obviously , the “looks” are different from each other, so not all “visual” looking parts will fit GV650 without some struggling or cutting etc

GV700 is been discontinued ,   but Korea is always updating GV650 since it came to life around 2005 (circa) and they have a new facelift model again for 2023/2024 release

It is easier to get Gv650 parts

// Meditation doesn't mean you have to sit still....

[Kristian]

♠️ MARCEL wrote:

Hey, ST7 is inspired by the design of the GV125C bike , and GV650 tends to be on the “port-cruiser” style. Not all parts can be changed, especially St7 is essentially called GV700i. You will need to be specific on which exact parts you want from an St7? Obviously , the “looks” are different from each other, so not all “visual” looking parts will fit GV650 without some struggling or cutting etc GV700 is been discontinued , but Korea is always updating GV650 since it came to life around 2005 (circa) and they have a new facelift model again for 2023/2024 release It is easier to get Gv650 parts

Quote

 

okay ☺️

so what I hear you say is on the appearance it is of course very different.

but electronics and engine exhaust etc are the same?

[Steve]

Exploring the Hyosung Parts lists it does seem rather more parts were changed for the ST7 than was really required, though some bits (like levers) look identical but have different part numbers.

 

I wonder if one of the still occasionally available GV650 aftermarket exhaust systems would fit my ST7 ?

[♠️ MARCEL]

You can take exhausts from either ST7 or GV650 = But your struggle would be “how to i mount it ?”   = Pipes yes , but mufflers will need some creative mounting , if cross-breeding between two bikes.

Aftermarkets = Same thing.  If you can mount it creatively there should be no issues.     ST7 has lambda sensors , so an old carby GV650 pipes would not work due to missing LAMBDA ports , unless you weld one inside.

Electronics = Hyosung uses 7 ECU’s across their EFi bikes from 250 to 650cc.  Very complicated area that needs specific parts you want to change ?  Ie. Even igntion coils are different across the years , even their OHM ratings, there is a lot of sensors too that respond to specific ECU’s
Sentec, Edgetek , Mitsubishi, Daewoo, Delphi Malaysia, Delphi USA,  Motion, etc.   They also sometimes use “certain specific years” of GV650 to use  GT250 igniton coils and its lambda sensor but not the ECU ,  also sometimes they change harness … Ie. a delphi bike , expects delphi sensors on most places with connectors that are not backwards compatible with  Sentec Hyosung models. etc.  It is complicated, it is best to narrow things down to a very specific part you need.

Don’t always rely on part numbers, they do change parts for the same part number for “updated/revised” versions.

// Meditation doesn't mean you have to sit still....

[Author]

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