Checking The Fuel Pump - Yamaha YZF-R1K Service Manual

CARBURETORS
EB600090

CHECKING THE FUEL PUMP

1. Check:
• fuel pump 1
a. Remove the fuel tank.
Refer to "FUEL TANK" in chapter 3.
b. Disconnect the fuel-pump-to-carbure-
tor 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 flow-
ing.
Fuel flows.
6 - 15
CARB
Fuel pump is OK.
Replace the fuel
pump.
Fuel pump is OK.
Replace the fuel
pump.
6