Reply To: GV125 S — Engine issue?
First of all welcome!
Do not worry, it is not dead. The bike is still alive, since it is only 1900 miles, it is still a baby.
- Did the owner send service reciepts of 600 miles, 1,00 miles because at 600 miles = Warranty allows Korea to replace any faulty parts for free such as strange cooling system issues , or investigate metal shavings
- At 1,000 miles, the service dealer must open the engine valves and adjust them (Valve Clearance is a requirement from Korea at 600-1000 miles to make sure the valves are okay since brand new === metal shavings will also be “new parts talking to each other inside the motor” and old shavings are normal.
After oil change, future metal shavings will normally be clutch plates. - If piston has a problem , yes you will see lot of smoke and low compression and it will eat oil very fast.
- Coolant = Any service history reciepts showing this “Water pump flush, water coolant checked , radiator removed & checked for leak test” ?
The liquid cooled vtwin 125cc is the first for Hyosung because all 125cc were using OIL COOLER, they got very very hot! = So Hyosung switch to water cooling to help 125cc cool down more , as it is a v-twin! it would make more heat naturally than a single piston 125 LC motor.
As long as bike is not dead , it has life, do not worry!