Reply To: GV650 carb. No Mo-jo Forums 🚥 PiT STOP 🔧 Hyosung Technical Help GV650 carb. No Mo-jo Reply To: GV650 carb. No Mo-jo Nov 3, 2021 at 4:30 PM #6541 Alan McLeanMember Topics: 12Replies: 90 Yes the fuel pump run’s on vacuum, you need to check all the vacuum lines for cracks/splits and especially the inlet manifolds for the same.
