Repair the valve seat with the valve seat cutters [A].
Special Tools - Valve Seat Cutter Holder Bar [B]: 57001 -1128
Valve Seat Cutter Holder, 4.5 [C]: 57001 -1330

[For Exhaust Valve Seat]
Valve Seat Cutter, 45° -
27.5:
57001-1114
Valve Seat Cutter, 32° -
28:
57001-1119
Valve Seat Cutter, 60° -
25:
57001-1328
[For Intake Valve Seat]
Valve Seat Cutter, 45° -
32:
57001-1115
Valve Seat Cutter, 32° -
33:
57001-1199
Valve Seat Cutter, 60° -
33:
57001-1334
If the manufacturer’s instructions are not available, use the following procedure.
Valve Seat Inspection
Seat Cutter Operation CareGear Position Switch Installation
Securely place the springs [A] and pins [B] into the holes
[C] of the shift drum.
Apply grease to the new O-ring [D].
Install the gear position switch [E].
Apply a non-permanent locking agent to the threads of
the gear position switch screws [F].
Tighten:
Torque - Gear Position Swit ...
Air Intake Solenoid Valve (Service Code 2d, Equipped Models)
Air Intake Solenoid Valve Removal/Installation
Refer to the Air Intake Solenoid Valve Removal/Installation
in the Fuel System (DFI) chapter.
Air Intake Solenoid Valve Inspection
Refer to the Air Intake Solenoid Valve Unit Test in the
Electrical System chapter.
If the air intake ...
Front Wheel Rotation Sensor Signal Abnormal (Service Code b 42)
Measure the air gap between the front wheel rotation sensor
and sensor rotor.
Thickness Gauge [A]
Air Gap
Standard: 0.4 1.6 mm (0.02
0.06 in.)
If the measurement is not the standard, check each part
for deformation and looseness and correct accordingly.
If the measurement is t ...