HYOSUNG MS3 250 Owner's Manual page 73

ADJUSTING THE THROTTLE
CABLE
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There should be 0.5 ~ 1.0 mm (0.02~0.04
in) free play in the throttle cable.
If this is not the case, proceed as follows :
● Position the motorcycle on the center
stand.
● Withdraw the protection.
● Loosen the lock nut ① .
● Rotate the adjuster ②
specified free play.
● When finished, tighten the lock nut ①
and check free play again.
● Refit the protection.
WARNING
Inadequate throttle cable play can
cause engine speed to rise suddenly
when you turn the throttle grip. This
can lead to loss of rider control.
Adjust the throttle cable play so that
engine idle speed does not rise due to
throttle grip movement.
WARNING
When finished, turn the handlebar to
make sure its movement does not
affect the engine idle rpm and check
that the throttle grip - when opened
and then released - returns smoothly
to the closed position.
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until achieving the
SPARK PLUG
Check the spark plug every time a sched-
uled maintenance service is performed.
At regular intervals, remove the spark plug
and clean off any carbon deposits or
replace as required.
To reach the spark plug :
● Remove the helmetbox inner cover.
To remove and clean the spark plug :
WARNING
Before carrying out the following
operations, let the engine and the muf-
fler cool down to ambient tempera-
ture, in order to avoid burns.
1. Disconnect spark plug cap.
2. Remove all the dirt from the base of the
spark plug, then unscrew it and extract it
from its seat, taking care that neither dust
nor other substances enter the cylinder.
3. Make sure that there are neither carbon
deposits, nor corrosion marks on the
electrode and on the central part : if
necessary, clean them with the special
cleaners for spark plugs, with an iron
wire and / or a metal brush.
4. Energetically blow some air, in order to
prevent the removed residues from get-
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