2-16 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Throttle Control System Inspection
Check that the throttle grip [A] 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 cable routing, grip free play, and cable damage. Then
lubricate the throttle cable.
Check the throttle grip free play [B].
Throttle Grip Free Play
2 ∼ 3 mm (0.08 ∼ 0.12 in.)
If the free play is incorrect, adjust the throttle cable as
Loosen the locknuts [A] [B].
Screw both throttle cable adjusters [C] [D] to give the
throttle grip plenty of play.
Turn the decelerator cable adjuster [C] until there is no
play when the throttle grip play completely closed.
Tighten the locknut [A].
Turn the accelerator cable adjuster [D] until 2 ∼ 3 mm
(0.08 ∼ 0.12 in.) of throttle grip play is obtained.
Tighten the locknut [B].
If the free play can not be adjusted with the adjusters,
replace the cable.
Engine Vacuum Synchronization Inspection
These procedures are explained on the assumption that
the intake and exhaust systems of the engine are in
Situate the motorcycle so that it is vertical.
Take the throttle body assy off the engine (see Throttle
Body Assy Removal in the Fuel System (DFI) chapter).
Disconnect the purge hoses from the fittings of each throt-
#1 Hose [A]
#2 Hose [B]
#3 Hose [C]
#4 Hose [D]
On the US and CA models, remove the plugs instead of