Checking The Fuel Pump - Yamaha YZF-R6 99 Service Manual

CARBURETORS
EAS00504

CHECKING THE FUEL PUMP

1. Check:
S fuel pump 1
a. Remove the fuel tank.
Refer to "FUEL TANK" in chapter 3.
b. Disconnect the fuel-pump-to-carburetor fuel
hose 2 from the carburetor.
c. Connect the fuel-tank-to-fuel-pump fuel
hose to the fuel tank and then set the fuel
cock to "ON".
d. Place a container under the end of the fuel
hose 2 .
e. Start the engine and check if fuel flows from
the fuel hose 2 .
Fuel flows.
Fuel does not
flow.
f. Stop the engine and check if the fuel stops
flowing from the fuel hose 2 .
Fuel stops flowing.
F el flows Fuel flows.
6-16
CARB
Fuel pump is OK.
Replace the fuel p
pump.
Fuel pump is OK.
Replace the fuel p
pump.