Air Switching Valve Removal/Installation
Air Switching Valve Inspection
If the air switching valve [A] is normal, check the wiring for continuity (see Air Switching Valve Circuit).
Special Tool - Hand Tester: 57001-1394
If the wiring is good, check the ECU for its ground and power supply (see ECU Power Supply Inspection in the Fuel System (DFI) chapter).
If the ground and power supply are good, replace the ECU (see ECU Removal/Installation in the Fuel System (DFI) chapter).

Air Switching Valve Circuit

1. ECU
2. Air Switching Valve
3. Ignition Switch
4. Joint Connector F
5. Joint Connector A
6. Fuse Box 1
7. Ignition Fuse 15 A
8. Relay Box
9. ECU Main Relay
10. Frame Ground 1
11. Frame Ground 3
12. Starter Relay
13. ECU Fuse 15 A
14. Main Fuse 30 A
15. Battery
16. Engine Ground
Exhaust Butterfly Valve Actuator Resistance InspectionTie-Rod and Rocker Arm Bearing Removal
Remove:
Tie-Rod (see Tie-Rod Removal)
Rocker Arms (see Rocker Arm Removal)
Swingarm (see Swingarm Removal)
Sleeves [A]
Oil Seals [B]
Remove the needle bearings [C], using the bearing remover
head and bearing remover shaft.
Special Tools - Bearing Remover Head,
15 ×
17: ...
Piston Ring Groove Width Inspection
Measure the piston ring groove width.
Use a vernier caliper at several points around the piston.
Piston Ring Groove Width
Standard:
Top [A] 0.82 0.84 mm (0.0323
0.0331 in.)
Second [B] 0.82 0.84 mm
(0.0323 0.0331 in.)
Service Limit:
0.92 mm (0.036 in.)
Second 0.92 mm (0.036 in.)
...
Warning Symbols
: The red
warning indicator light
and the oil pressure warning symbol
( )
goes on whenever the oil pressure
is dangerously low or the ignition switch is in the “ON� position with the
engine not running, and go off when the
engine oil pressure is high enough. Refer
to the Mainten ...