2-12 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Idle Speed Inspection
Start the engine and warm it up thoroughly.
With the engine idling, turn the handlebars to both sides
If handlebars movement changes the idle speed, the
throttle cables may be improperly adjusted or incorrectly
routed, or damaged. Be sure to correct any of these
conditions before riding (see Throttle Control System
Inspection and Cable, Wire, and Hose Routing section in
the Appendix chapter).
Operation with improperly adjusted, incorrectly
routed or damaged cables could result in an unsafe
riding condition. Follow the service manual to be
make sure to correct any of these conditions.
Check the idle speed.
If the idle speed is out of specified range, check the idle
speed control valve actuator (see Idle Speed Control
Valve Actuator Inspection in the Fuel System (DFI) chap-
1 600 ±100 r/min (rpm)
Idle Speed Adjustment
This motorcycle is equipped with the idle speed control
valve. The idle speed is adjusted automatically at the
specified value (1 600 r/min (rpm)) by the idle speed
control valve system. Therefore, it is not necessary to
adjust the idle speed normally.
Throttle Control System Inspection
Check the throttle grip free play [A].
If the free play is incorrect, adjust the throttle cables.
Throttle Grip Free Play
2 ∼ 6 mm (0.08 ∼ 0.24 in.)
Check that the throttle grip [B] moves smoothly from full
open to close, and the throttle closes quickly and com-
pletely by the return spring in all steering positions.
If the throttle grip does not return properly, check the throt-
tle cables routing, grip free play, and cable damage. Then
lubricate the throttle cable.
Run the engine at the idle speed, and turn the handlebars
all the way to the right and left to ensure that the idle speed
does not change.
If the idle speed increases, check the throttle cable free
play and the cable routing.