Fuel Injector Removal/Installation
Refer to the Throttle Body Assy Disassembly/Assembly.
Fuel Injector Audible Inspection
Be sure the battery is fully charged.
Remove the lower side fairing (see Lower Side Fairing
Removal in the Frame chapter).
Start the engine, and let it idle.
Apply the tip of a screwdriver [A] to the fuel injector [B].
Put the grip end onto your ear, and listen whether the fuel
injector is clicking or not.
A sound scope can also be used.
The click interval becomes shorter as the engine speed
Do the same for the other fuel injectors.
If all the fuel injectors click at a regular intervals, the fuel
injectors are normal.
Turn the ignition switch OFF.
If any fuel injector does not click, check the fuel injector
resistance (see Fuel Injector Resistance Inspection).
Fuel Injector Resistance Inspection
Remove the throttle body assy with the connectors in-
stalled (see Throttle Body Assy Removal).
Disconnect the injector connector.
Connect a digital meter to the terminals [A] of the injector.
Measure the fuel injector resistance.
Fuel Injector Resistance
For Fuel Injector #1
W/R ←→ BL/R terminal
For Fuel Injector #2
W/R ←→ BL/O terminal
For Fuel Injector #3
W/R ←→ BL/W terminal
For Fuel Injector #4
W/R ←→ BL/Y terminal
Standard: About 11.7 ∼ 12.3 Ω at 20°C (68°F)
If the reading is out of the standard, replace the injector.
FUEL SYSTEM (DFI) 3-119