Removal
The hot
engine can burn you. Wait until the engine is cool enough to touch. |

| Caution disconnect the lead wire coupler before removing the ignition coil to avoid lead wire coupler damage. |
Caution
|

Special tool
(a): 09930–10121 (spark plug wrench
set)

Installation
Install the spark plugs in the reverse order of removal.
Pay attention to the following points:
| Caution do not cross thread or over tighten the spark plug, or such an operation will damage the aluminum threads of the cylinder head. |
Special tool
(a): 09930–10121 (spark plug wrench
set)
Tightening torque spark plug: 11 n·m (1.1 Kgf-m, 8.0 Lbf-ft)

| Caution do not hit the ignition coil with a plastic hammer when installing it. |


Spark plug inspection and cleaning
Refer to “spark plug inspection and cleaning” in section 0b .
Ignition coil inspectionDTC “c91” (p0500): vehicle speed sensor
circuit malfunction
Detected condition and possible cause
Detected condition
Possible cause
Speedometer does not receive signal from the vehicle
speed sensor for more than 6 sec. When the motorcycle is
running. Ecm does not receive signal from the vehicle
speed sensor for more than ...
Stp sensor adjustment
Adjust the stp sensor in the following procedures:
remove the air cleaner box cover. Refer to “air cleaner element removal
and installation” in section 1d .
Disconnect the stva lead wire coupler (1).
Insert the needle pointed probes to the stp sensor
coupler (between y/w a ...
Battery removal and installation
Removal
Remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Disconnect the battery (–) lead wire (1).
Disconnect the battery (+) lead wire (2).
Note
be sure to disconnect the battery (–) lead
wire (1) first, th ...