Spark Plug; Cylinder Compression Pressure - DAELIM S2 125 Service Manual

INSPECTIONS / ADJUSTMENTS
CHECK GAP,
DEPOSITS
CHECK FOR
CRACKS
ADJUSTER FEELER
WRENCH GAUGE

SPARK PLUG

SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG
SPARK PLUG SPARK PLUG
SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG
SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG SPARK PLUG
2-6
SPARK PLUG
0.8 ~ 0.9mm
● 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,
CHECK WASHER
● Always use a feeler gauge to check the gap.
FOR DAMAGE
● Loosen the lock nut with a valve wrench, and set valve
● After setting clearance to the prescribed level, hold the
● Measure the valve clearance again.
● Install the cylinder head cover and tighten the bolts.

CYLINDER COMPRESSION PRESSURE

● Start and warm up the engine.
● Remove the plug maintenance cover.
● Stop engine, and remove the spark plug cap and spark
● Install a compression gauge.
● Open the throttle completely, and crank the engine with
● If the pressure is low, check the following:
COMPRESSION
GAUGE
● If pressure is high, check the following:
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.
GENUINE PLUG : CR8EH-9
SPARK PLUG : 0.8~0.9mm
TORQUE VALUE : 1.2kgf·m
•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.
•Do not overtighten the spark plug.
clearance to a prescribed level by turning the adjusting
screw with a valve adjusting wrench.
adjuster screw with a valve adjusting wrench, and
tighten the lock nut.
TORQUE VALUES : 0.8kgf·m
TOOLS : WRENCH 8X9mm
ADJUSTING WRENCH B
FEELER GAUGE
TORQUE VALUES : 0.9 kgf·m
plug.
the starter motor until the gauge reading rising.
TOOL : COMPRESSION GAUGE
•The maximum reading is usually reached within 4~7
seconds.
COMPRESSION PRESSURE : 14.0 kg/cm
-Inadequate valve clearance adjustment
-Valve leakage
-Leakage from the cylinder head gasket
-Piston/cylinder worn
-Carbon deposits on the piston head, and cylinder head.
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