Service manual

THROTTLE BODY AND FUEL INJECTOR
EAS00915
CHECKING THE FUEL PUMP AND PRES-
SURE REGULATOR OPERATION
1. Check:
8 pressure regulator operation
•••••••••••••••••••••••
a. Remove the footrest board.
Refer to “COVER AND PANEL” in chapter
3.
b. Remove the fuel hose connector cover (T)
and disconnect the fuel hose (2) from the
fuel pump.
C
Although the fuel has been removed from
the fuel tank, be careful when removing the
fuel hose, since there may be fuel remaining
in it.
NOTE:
Before removing the hose, place a few rags in
the area under where it will be removed.
c. Connect the pressure gauge (3) and adapter
(4) onto the fuel hose.
(tj//^ Pressure gauge
/f~"^ 90890-03153
YU-03153
Adapter
90890-03181
d. Start the engine.
e. Measure the fuel pressure.
Fuel pressure
246 ~ 254 kPa
(2.46 ~ 2.54 kg/cm
2
, 35.0 ~ 36.1 psi)
Faulty -» Replace the fuel pump.
•••••••••••••••••••••••
EAS0091 6
CHECKING THE THROTTLE POSITION SEN-
SOR
1. Check:
8throttle position sensor
•••••••••••••••••••••••
a. Connect the digital circuit tester to the ter-
minals of the throttle position sensor.
FI ifl
^
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