Forums 🚥 PiT STOP 🔧 Hyosung Technical Help Valves adjustment – too tight? -GV125S 2022 Clearance Adjust Reply To: Valves adjustment – too tight? -GV125S 2022 Clearance Adjust
Oct 9, 2025 at 10:02 PM
#20970
Take a quick look at this topic below, as i did post some clearance values:
Also , report back to this thread when you spin your engine 10x , then recheck clearance, it might change 0.05mm to 0.07mm , although let the bike cool down overnight and do it on a cold morning as heat does affect the clearances.
If the markings inside the engine look like pen-markers like the green one, that’s what Hyosung did during production, as long as nothing looks broken.