Fuel Pump - KYMCO Grand Dink 250 Service Manual

13
. FUEL SYSTEM/CARBURETOR/
FUEL PUMP/ FUEL TANK

FUEL PUMP

CONSTRUCTION:
The fuel pump adopted for this model is a vacuum-type fuel pump which utilizes the positive and
negative pulsating pressures produced by the engine crankcase to control the oil pump diaphragms
and deliver fuel from the fuel tank to the carburetor through the suction valve and outlet valve.
FUEL PUMP CONSTRUCTION
Outlet
Diaphragms
Suction Valve
Outlet Valve
Pulsating Pressure
from Crankcase
Inlet
GRAND DINK 250
13-4