Honda CBR650RA Shop Manual page 222

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FUEL SYSTEM
FUEL FILLER CAP
REMOVAL/INSTALLATION
Remove the following:
– Three socket bolts [1]
– Fuel filler cap [2]
– Breathe seal [3]
A pressure release can be heard when opening the fuel
cap, but this is not blockage of the passage.
If checking for clog in the passage of the fuel tank side
is necessary, apply air pressure to the breather hose
end with the fuel filler cap opened.
• Replace the breather seal with a new one.
Installation is in the reverse order of removal.
TORQUE:
Fuel filler cap mounting socket bolt:
1.8 N·m (0.2 kgf·m, 1.3 lbf·ft)
FUEL PUMP UNIT
INSPECTION
Turn the ignition switch ON with the engine stop switch
" " and confirm that the fuel pump operates for 2
seconds.
If the fuel pump does not operate, inspect as follows:
Turn the ignition switch OFF.
Lift the fuel tank and support it (page 3-4).
Disconnect the fuel pump 3P (Black) connector [1].
Except CB650RA
ED, IIED, IIIED, IVED, FO, IIFO, KO, IIKO models
Turn the ignition switch ON with the engine stop switch
" ".
Measure the voltage between the terminals of the wire
harness side fuel pump 3P (Black) connector [1].
CONNECTION: Brown (+) – Green/black (–)
There should be battery voltage for 2 seconds.
If there is battery voltage, replace the fuel pump unit.
If there is no voltage, inspect the following:
– Green/black wire between the fuel pump and ground
for open circuit
– Brown wire between the fuel pump relay and fuel
pump for open circuit
– Fuel pump relay and its circuits (page 7-19)
– ECM (page 4-76)
7-8
[2]
[1]
[1]
Br G/Bl
[3]
[1]