
Do not remove the nozzle assy from the air cleaner housing.
Be sure to place a piece of cloth around the fuel outlet pipe of the fuel pump and the delivery pipe of the throttle body assy.
| WARNING Fuel is flammable and explosive under certain conditions and can cause severe burns. 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. |
Connect a commercially available vacuum/pressure pump [A] to the nipple of the delivery pipe [B] with the fuel hose [C] (both ends with the clamps [D]) as shown in the figure.
Rear View [E]

Apply soap and water solution to the areas [J] as shown in the figure.
Watching the pressure gauge, squeeze the pump lever, and build up the pressure until the pressure reaches the maximum pressure.
Injector Fuel Line Maximum Pressure Standard: 300 kPa (3.06 kgf/cm², 43 psi)
NOTICE
During pressure testing, do not exceed the maximum pressure for which the system is designed.
Watch the gauge for at least 6 seconds.
If the pressure holds steady, the fuel line is good.
If the pressure drops at once or if bubbles are found in the area, the fuel line is leaking. Replace the delivery pipe assy, injectors and related parts.
Install: Primary and Secondary Fuel Hoses (see Fuel Hose Replacement in the Periodic Maintenance chapter) Air Cleaner Housing (see Air Cleaner Housing Removal) Fuel Tank (see Fuel Tank Removal)
Start the engine and check for fuel leakage.
Fuel Injector Circuit

1. Ignition Switch
2. Engine Stop Switch
3. Secondary Fuel Injector #1
4. Secondary Fuel Injector #2
5. Secondary Fuel Injector #3
6. Secondary Fuel Injector #4
7. Primary Fuel Injector #1
8. Primary Fuel Injector #2
9. Primary Fuel Injector #3
10. Primary Fuel Injector #4
11. Joint Connector E
12. ECU
13. Engine Ground
14. Battery
15. Starter Relay
16. Main Fuse 30 A
17. ECU Fuse 15 A
18. Frame Ground 2
19. Frame Ground 1
20. Fuel Pump Relay
21. Relay Box
22. Fuse Box 1
23. Ignition Fuse 15 A
24. Joint Connector F
Fuel Injector Output Voltage Inspection
Throttle Grip and CablesAir Suction Valve Installation
Install the air suction valve so that opening [A] of the reed
faces downward.
Apply a non-permanent locking agent to the threads of
the air suction valve cover bolts [A], and tighten them.
Torque - Air Suction Valve Cover Bolts: 9.8 N·m (1.0 kgf·m,
87 in·lb)
...
Tire Tread Wear Inspection
As the tire tread wears down, the tire becomes more susceptible
to puncture and failure. An accepted estimate is
that 90% of all tire failures occur during the last 10% of tread
life (90% worn). So it is false economy and unsafe to use
the tires until they are bald.
Measure the tread depth a ...
Air Intake Duct Disassembly
(Other than US, CA and CAL Models)
Remove:
Air Intake Duct (see Air Intake Duct Removal)
Seal [A] and Screen [B]
Turn the air intake valve actuator [C] counterclockwise
(90°).
Remove the shaft [A] of the air intake valve actuator.
Remove:
Pad [A]
Screws [B]
Air Intake Valve [C]
...