DAELIM S2-250, Service Manual

Page: 29 / 201

2-6
INSPECTIONS / ADJUSTMENTS
●
Loosen the lock nut with a valve wrench, and set valve
clearance to a prescribed level by turning the adjusting
screw with a valve adjusting wrench.
●
After setting clearance to the prescribed level, hold the
adjuster screw with a valve adjusting wrench, and
tighten the lock nut.
TORQUE VALUES : 1.1kgf
·
m
TOOLS : WRENCH 8X9mm
ADJUSTING WRENCH B
FEELER GAUGE
●
Measure the valve clearance again.
●
Install the cylinder head cover and tighten the bolts.
TORQUE VALUES : 1.0 kgf
·
m
●
Measure valve clearance with a feeler gauge.
VALVE CLEARANCE : Intake : 0.1mm
Exhaust : 0.1mm
CYLINDER COMPRESSION PRESSURE
●
Start and warm up the engine.
●
Remove the plug maintenance cover.
●
Stop engine, and remove the spark plug cap and spark
plug.
●
Install a compression gauge.
●
Open the throttle completely, and crank the engine with
the starter motor until the gauge reading rising.
TOOL : COMPRESSION GAUGE
COMPRESSION PRESSURE : 15
±
2 kgf/cm 2
●
If the pressure is low, check the following:
-Inadequate valve clearance adjustment
-Valve leakage
-Leakage from the cylinder head gasket
-Piston/cylinder worn
●
If pressure is high, check the following:
-Carbon deposits on the piston head, and cylinder head.
•
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.
•
The maximum reading is usually reached within 4~7
seconds.