Spark Plug; Valve Clearance - DAELIM HISTORY 125 Service Manual

● Be sure to allow the element to dry thoroughly before
applying oil. Otherwise, the oil will be diluted by the
and the filtering ability of the filter will be much less
effective.
● Spread clean #80~90 gear oil on the element, rubbing
inthoroughly over the surface with both hands, and then
squeeze out any excess oil.
CAUTION
•Using air filter oil when riding in extremely dusty
conditions prevents premature engine wear due to
dust/dirt drawn into the engine. Apply air filter oil to
the entire surface of the element and rub it with both
hands to saturate the element with oil. Squeeze out
excess oil.

SPARK PLUG

● Remove the plug maintenance cover.
● Remove the spark plug cap and disassemble the plug.
● Check the plug for damage, contamination or deposits.
● If the spark plug is severely contaminated or damaged,
raplace with a new one. If the plug can be reused after
removing only the carbon, use plug cleaner and wire
brush to clean the plug.
● Always use a feeler gauge to check the gap.
GENUINE PLUG : CR8EH-9
SPARK PLUG GAP : 0.8~0.9mm
TORQUE VALUE : 1.1 kgf·m
CAUTION
•Make sure there is no dirt or debris on the seat of the
spark plug hole before inserting the spark plug.
•To prevent damage to the cylinder head, hand-tighten
the spark plug before using a wrench to tighten to the
specified torque.(torque : 14kgf·m)
•Do not overtighten the spark plug.

VALVE CLEARANCE

● Remove the following parts.
-Luggage box. (⇨4-4)
-Center cover. (⇨4-5)
● Loosen the 4 cylinder head bolts.
NOTE
•Inspect and adjust the valve clearance when the
engine is cool. (under 35 ° C / 95 ° F)
•Remove the cylinder head cover.
•Turn the flywheel counterclockwise, and align the
"T" mark on the flywheel with the index mark on
the RH. crank case cover.
•The piston at this time must be at the top dead center
of the compression stroke.
● Measure valve clearance with a feeler gauge.
VALVE CLEARANCE : Intake : 0.12±0.02mm
Exhaust : 0.12±0.02mm
INSPECTIONS / ADJUSTMENTS
→ →
CHECK GAP,
DEPOSITS
CHECK FOR
CRACKS
RH. SHROUD
TIMING CHECKING
→
0.8mm~0.9mm
CHECK WASHER
FOR DAMAGE
CYLINDER HEAD
COVER
3-5