Reply To: GV125 S — Engine issue?
Aquila GV125 SFirst 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!
Thanks a lot for your detailed response, Marcel!
In terms of servicing, the bike was serviced on 600 miles, and the last service was at 1657.
Both services included all the usuals, and in terms of Valve Clearance and Coolant Reservoir, both were inspected but nothing done to them! I.e., the dealer must’ve felt that they were fine. There is no evidence of Valve Clearence being adjusted.
Next service is due at 2500 miles!