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 12:27 PM #6540 Craig JMember Topics: 3Replies: 4 Thanks. Does the fuel pump run off a vacuum ?