
NOTE
Check the wheel alignment (see Wheel Alignment Inspection).
Rotate the rear wheel to find the position where the chain is tightest.
Measure the vertical movement (chain slack) [A] midway between the sprockets.
If the chain slack exceeds the standard, adjust it.
Chain Slack
Standard: 25
35 mm (1.0
1.4 in.)
Drive Chain Lubrication Condition Inspection
Drive Chain Slack AdjustmentSpark Plug Condition Inspection
Remove the spark plugs (see Spark Plug Replacement in
the Periodic Maintenance chapter).
Visually inspect the spark plugs.
If the spark plug center electrode [A] and/or side electrode
[B] are corroded or damaged, or if the insulator [C]
is cracked, replace the plug.
If the spark plug is ...
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 ...
Stick Coil Primary Peak Voltage Inspection
NOTE
Be sure the battery is fully charged.
Remove the stick coils (see Stick Coil Removal).
Do not remove the spark plugs.
Connect the ECU to the harness.
Measure the primary peak voltage as follows.
Install the new spark plug [A] into each stick coil [B], and
ground them onto ...