Reply To: Rear cylinder problems GV250 efi Forums 🚥 PiT STOP 🔧 Hyosung Technical Help Rear cylinder problems GV250 efi Reply To: Rear cylinder problems GV250 efi Aug 26, 2025 at 2:33 PM #20583 mehranMember Topics: 1Replies: 3🌍 Country: Iran⚡ Bike Model: 2014 Aquila I have not done any coil swapping but will do. Seems easy enough! Could the weak spark couse the loud noise coming from the rear cylender?
