Reply To: GV250 fuel pump replacement
Do your rubber intake pipes on the engine heads have an injection nipple intact or is it broken or blanked off ?
Also, the vacuum pump is easier to fit as it mounts to the battery box , as you can drill a hole and zip tie it or do a nut and bolt trick but…,. zip tie method is easier if the battery tray doesn’t already have threaded mounts for it.
This is the pump Hyosung uses for later carb modes but.,… Mikuni made a special version of the DF series pump to have 2 gold fuel ports and a single silver vacuum hole
See our tutorial below for routing diagram too
How to change / upgrade fuel lines & fuel filter on CARBY GV125 & GV250 Diagram