Fuel Pressure Inspection - Suzuki GSX-R750 Service Manual

4-52 FI SYSTEM AND INTAKE AIR SYSTEM

FUEL PRESSURE INSPECTION

• Lift and support the fuel tank with its prop stay. (4-51)
• Place a rag under the fuel pressure check bolt 1 and slowly
loosen it and catch the remaining fuel using a suitable con-
tainer.
• Remove the fuel pressure check bolt 1 and install the special
tools.
[ 09940-40211: Fuel pressure gauge adaptor
09915-77330: Oil pressure gauge
09915-74520: Oil pressure gauge hose
Turn the ignition switch ON and check the fuel pressure.
Fuel pressure: Approx. 300 kPa (3.0 kgf/cm
If the fuel pressure is lower than the specified, inspect the follow-
ing items:
* Fuel hose leakage
* Clogged fuel filter
* Pressure regulator
* Fuel pump
If the fuel pressure is higher than the specified, inspect the fol-
lowing items:
* Fuel pump check valve
* Pressure regulator
"
* Before removing the special tools, turn the ignition
switch OFF position and release the fuel pressure
slowly.
* Gasoline is highly flammable and explosive. Keep heat,
sparks and flame away.
#
Use a new gasket washer installed on the check bolt to
prevent fuel leakage.
• Tighten the fuel pressure check bolt to the specified torque.
! Fuel pressure check bolt: 5 N . m (0.5 kgf . m, 3.5 lb-ft)
2
, 43 psi)