Valve Clearance GV300S 2021

[RoadCruiser]

Hello,

My GV300S with 13tkm makes some noise from the front cyclinderhead and yesterday i have checked the clearance.

Intake is bigger than exhaust, this cannot be right.

In is 0.018-0.020 out is 0.010 – 0.015

The clearance can be regulated with a screwdriver and blocked with a nut, it doesn’t have shims like the 125.

Does someone have the specs of the valve.

I have searched the whole internet for getting the workshop manual without luck, does someone have it? I don’t like working on bikes without knowing the right torque specs of the bolts.

Best regards RoadCruiser

[RoadCruiser]

I checked the clearance from the cilinder under the seat:

In 0.08mm Out 0.06mm

The front has:

In 0.20mm Out 0.15mm sry the post before had a zero to much 🫣

A big difference 😖

 

[RoadCruiser]

Got the clearance:

In: 0.07-0.09mm Out: 0.10 – 0.12mm

Important: In the middle of the V is the intake, so on the filter side, the clearance order is OUT – IN IN- OUT

 

Does someone know where i can buy the service manual?

[♠️ M77]

Sent you a PM , have a look, sorry i didnt post every book on this forum for the -S- models as it’s a very very new bike on here in UK (Not all dealers even have it yet!).  But i got you!
(Hyosung want’s to make sure people obey the 2/5yr warranty before any bikes get sent back for any serious issues)

If you bought it used, you can ignore the need for warranty as it may have expired with the ex-owner.

[Author]

Posts

[RoadCruiser]

Hello,

My GV300S with 13tkm makes some noise from the front cyclinderhead and yesterday i have checked the clearance.

Intake is bigger than exhaust, this cannot be right.

In is 0.018-0.020 out is 0.010 – 0.015

The clearance can be regulated with a screwdriver and blocked with a nut, it doesn’t have shims like the 125.

Does someone have the specs of the valve.

I have searched the whole internet for getting the workshop manual without luck, does someone have it? I don’t like working on bikes without knowing the right torque specs of the bolts.

Best regards RoadCruiser

[RoadCruiser]

I checked the clearance from the cilinder under the seat:

In 0.08mm Out 0.06mm

The front has:

In 0.20mm Out 0.15mm sry the post before had a zero to much 🫣

A big difference 😖

 

[RoadCruiser]

Got the clearance:

In: 0.07-0.09mm Out: 0.10 – 0.12mm

Important: In the middle of the V is the intake, so on the filter side, the clearance order is OUT – IN IN- OUT

 

Does someone know where i can buy the service manual?

[♠️ M77]

Sent you a PM , have a look, sorry i didnt post every book on this forum for the -S- models as it’s a very very new bike on here in UK (Not all dealers even have it yet!).  But i got you!
(Hyosung want’s to make sure people obey the 2/5yr warranty before any bikes get sent back for any serious issues)

If you bought it used, you can ignore the need for warranty as it may have expired with the ex-owner.

[Author]

Posts