Reply To: Strange noise from rear cylinder Forums 🚥 PiT STOP 🔧 Hyosung Technical Help Strange noise from rear cylinder Reply To: Strange noise from rear cylinder Jul 11, 2020 at 12:11 AM #4676 ♠️ M77Admin Topics: 39Replies: 2,917🌍 Country: UK⚡ Bike Model: GT Did you manage to get a video? If you hear metal scratching sounds going up and down rapidly near the valve head/cylinder barrel. Thats the piston rings Is that what youre hearing?
