Cylinder Head / Valve - DAELIM Besbi SC125 Service Manual

9. CYLINDER HEAD / VALVES
SERVICE INFORMATION
TROUBLESHOOTING
CAMSHAFT
CYLINDER HEAD
VALVE SPRINGS
SERVICE INFORMATION
GENERAL SAFETY
The rocker arm and the camshaft can be serviced without removing the engine. However, the engine must be removed
from the frame to maintain the cylinder head.
The oil of camshaft oil is supplied through the cylinder head oil hole. Clean the oil hole prior to assembling the cylinder
head.
SPECIFICATIONS
ROCKER ARM INNER DIAMETER
ROCKER ARM
ROCKER ARM SHAFT OUTER DIAMETER
CAM HEIGHT
CAMSHAFT
CAMSHAFT OUTER DIAMETER
CYLINDER HEAD WARPAGE
VALVE SPRING FREE LENGTH
VALVE STEM OUTER DIAMETER
VALVE
VALVE GUIDE INNER DIAMETER
VALVE GUIDE
CLEARANCE BETWEEN
STEM AND GUIDE
VALVE SEAT WIDTH
TORQUE VALUES
CAM CHAIN TENSIONER PIVOT BOLT
SPARK PLUG
CAMSHAFT HOLDER 8mm NUT
CAM CHAIN TENSIONER MOUNTING BOLT
CAM CHAIN TENSIONER SEALING SCREW
CYLINDER HEAD COVER BOLT
CYLINDER HEAD BOLT
TAPPET ADJUST NUT
9-1
9-2
9-3
9-5
9-6
ITEM
1.0 kgf m
1.2 kgf m
2.9 kgf m
1.2 kgf m
0.4 kgf m
0.9 kgf m
1.1 kgf m
1.1 kgf m
VALVES
VALVE GUIDES
VALVE SEATS
CYLINDER HEAD ASSEMBLY 9-12
CAMSHAFT ASSEMBLY
STANDARD VALUE
10.000 - 10.015
9.972 - 9.987
IN 25.965
EX 25.810
15.005 - 15.018
-
IN,EX 31.2/34.1
IN 4.975 - 4.990
EX 4.955 - 4.970
IN,EX 5.000 - 5.012
IN 0.010 - 0.037
EX 0.030 - 0.057
1.0
9-6
9-7
9-8
9-13
Unit : mm
SERVICE LIMIT
10.10
9.91
25.57
25.41
15.040
0.05
30.2/33.1
4.900
4.900
5.030
0.080
0.100
1.8
9-1