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 inspectionStarter motor removal and installation
Removal
Turn the ignition switch off and disconnect the
battery (–) lead wire (1).
Lift and support the fuel tank. Refer to “fuel tank
removal and installation” in section 1g (page 1g-
9).
Disconnect the starter motor lead wire (2).
Remove the starter motor (3).
...
Radiator / cooling fan motor removal and
installation
Removal
Remove the inner under cowlings. Refer to “exterior parts removal and
installation” in section 9d .
Drain engine coolant. Refer to “cooling system inspection” in section
0b .
Disconnect the reservoir tank inlet hose (1) and
water air bleed hose (2).
Remove ...
DTC “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 ...