Forums 🚥 PiT STOP 🔧 Hyosung Technical Help GV650 Daewoo CHE Reply To: GV650 Daewoo CHE
Feb 1, 2026 at 11:46 AM
#21856
Daewoo pumps run at a different pressure rating, did you swap the internals of your OLD pump in to the new plastic shell of the new pump ?
And retry? Also if possible , check if there is a 12v pulse coming from the pump wires when you turn the bike on ? (this is what turns the pump on to prime, so its a wire / signal check)
As you had the bike apart, you want to use only dry air , and blow the connectors clean for every plug you find on the bike. I would not even think twice to put liquids near the ecu ,as you said, you would have to go in hell to even find another Daewoo ECU again, so i too hope it is not that either.