If the cams are worn down past the service limit, replace the camshaft.
Cam Height Standard:
Exhaust 35.043 
35.157 mm
(1.3796 
1.3841 in.)
Intake 38.243 
38.357 mm
(1.5056 
1.5101 in.)
Service Limit:
Exhaust 34.94 mm (1.376 in.)
Intake 38.14 mm (1.502 in.)
Camshaft Runout Inspection
Camshaft Chain RemovalStarter Motor Installation
NOTICE
Do not tap the starter motor shaft or body. Tapping
the shaft or body could damage the motor.
Clean the starter motor legs [A] and crankcase where the
starter motor is ground.
Replace the O-ring [A] with a new one.
Apply grease to the new O-ring.
Tighten:
Torque - Starter ...
Rear Wheel Rotation Sensor Removal
NOTICE
The wheel rotation sensor should be handled carefully,
never struck sharply, as with a hammer, or allowed
to fall on a hard surface since the wheel rotation
sensor is precision made. Be careful not to get
water or mud on the wheel rotation sensor.
Do not try to disassemble or repair t ...
ECU Communication Error (Service Code 39)
ECU Communication Line Inspection
When the data is not sent from the ECU to the meter unit
for more than about 10 seconds, the service code 39 is
displayed.
The data is sent through the CAN communication line.
The service code 39 is detected with the meter unit.
When the user mode, this commun ...