Checking The Fuel Pump And Pressure Regulator Operation - Yamaha FJR1300R Service Manual

FUEL INJECTION SYSTEM
CHECKING THE FUEL PUMP AND
PRESSURE REGULATOR OPERATION
1. Check:
• pressure regulator operation
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a. Remove the fuel tank.
Refer to "SEATS AND FUEL TANK" in chap-
ter 3.
b. Disconnect the negative pressure hose 1
from the pressure regulator at the joint.
c. Connect the mity vac set 2 onto the nega-
tive pressure hose from the pressure regu-
lator.
d. Connect the pressure gauge 3 and adapter
4 onto the fuel injector pipe.
Mity vac
Pressure gauge
Fuel pressure adapter
e. Install the fuel tank.
Refer to "SEATS AND FUEL TANK" in chap-
ter 3.
f. Start the engine.
g. Measure the fuel pressure.
Fuel pressure
7 - 38
FI
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YB-35956
YU-03153
YM-03176
2
250 kPa (2.5 kg/cm , 36 psi)
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