3-80 FUEL SYSTEM (DFI)
Fuel Pressure Inspection
This inspection can determine which trouble the DFI
system has, mechanical or electrical trouble.
It is preferable to measure the fuel pressure while run-
ning the motorcycle just when trouble occurred in order
to know symptom well.
Be sure the battery is fully charged.
Remove the fuel tank (see Fuel Tank Removal).
Be sure to place a piece of cloth around the fuel hose joint
and the delivery pipe.
Insert a minus screw driver [A] into the slit on the joint lock
Turn the driver to disconnect the joint lock.
Remove the fuel hose [C].
Be prepared for fuel spillage; any spilled fuel must
be completely wiped up immediately.
When the fuel hose is disconnected, fuel spills out
from the hose and the pipe because of residual
pressure. Cover the hose connection with a piece
of clean cloth to prevent fuel spillage.
Install the fuel pressure gauge adapter [A] and fuel hoses
between the fuel pump outlet pipe [B] and the delivery
Connect the pressure gauge [D] to the fuel pressure
Special Tools - Oil Pressure Gauge, 5 kgf/cm²: 57001-125
Fuel Pressure Gauge Adapter: 57001-1593
Fuel Hose: 57001-1607
Do not try to start the engine with the fuel hoses
Temporarily, install the fuel tank [E].