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 CareCable, Wire, and Hose Routing
1. Clamp (Hold the regulator/rectifier lead. Run the lead inside of the
installation hole.)
2. Clamp (Bend down the clamp, and hold the main harness and the vacuum hose
(equipped
models).)
3. Clamp (Hold the air intake solenoid valve lead (equipped models).)
4. Run the vacuum hose under ...
Balance Inspection
Remove the front and rear wheels (see Front/Rear Wheel
Removal).
Support the wheel so that it can be spun freely.
Spin the wheel lightly, and mark [A] the wheel at the top
when the wheel stops.
Repeat this procedure several times. If the wheel stops
of its own accord in various positi ...
Terminal Numbers of ECU Connectors
1. Subthrottle Valve Actuator: Y/BK
2. Subthrottle Valve Actuator: BK/O
3. Unused
4. Front Wheel Rotation Sensor Signal: G/Y
5. Unused
6. Starter Lockout Switch: R/G
7. Gear Position Switch: G/R
8. Crankshaft Sensor (–): BK
9. Power Supply to Sensors: BL
10. Unused
11. Intake Air Pre ...