Yamaha FJR13AG Service Manual page 465

b. Connect the pressure gauge "4" to the injec-
tor pressure adapter "1".
Pressure gauge
90890-03153
Pressure gauge
YU-03153
Fuel injector pressure adapter
90890-03210
Fuel injector pressure adapter
YU-03210
c. Close the valve on the injector pressure
adapter.
d. Apply air pressure with the air compressor.
e. Open the valve on the injector pressure
adapter until the specified pressure is
reached.
Specific air pressure
490 kPa (4.9 kgf/cm
ECA18440
NOTICE
Never exceed the specified air pressure or
damage could occur.
f. Close the valve on the injector pressure
adapter.
g. Check that the specified air pressure is held
for about one minute.
Pressure drops → Check the pressure gauge
and adapter.
Check the seals and O-rings, and then rein-
stall.
Replace the fuel injectors.
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EAS30482
CHECKING THE FUEL PRESSURE
1. Check:
• Fuel pressure
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a. Remove the fuel tank bolts "1" and lift up the
fuel tank.
2
, 69.7 psi)
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7-10
THROTTLE BODIES
ECA23360
NOTICE
When lifting up the fuel tank, be careful not
to pull the fuel tank breather/overflow hose.
b. Disconnect the fuel hose "2" from the fuel rail.
EWA17320
WARNING
Cover fuel hose connections with a cloth
when disconnecting them. Residual pres-
sure in the fuel lines could cause fuel to
spurt out when removing the hose.
ECA20010
NOTICE
Be sure to disconnect the fuel hose by hand.
Do not forcefully disconnect the hose with
tools.
c. Connect the pressure gauge "3" and adapter
"4" to the fuel hose "2".
Pressure gauge
90890-03153
Pressure gauge
YU-03153
Fuel pressure adapter
90890-03176
Fuel pressure adapter
YM-03176
1
2