80
CYLINDER HEAD / VALVES
SERVICE INFORMATION
GENERAL
This section covers maintenance of the cylinder head, valves, camshaft and rocker arms.
Camshaft lubrication oil is fed to the cylinder head through an oil control orifi ce in the engine case.
Be sure this orifi ce is not clogged and that the O-ring and dowel pins are in place before installing the cylinder head.
Apply clean engine oil to the camshaft bearings to provide initial lubrication.
SERVICE DATA
Unit : mm
ITEM
STANDARD
SERVICE LIMIT
Cylinder head
Warpage
—
0.05
Valve seat width
1.0
1.6
Cam height
IN
19.105
18.705
EX
19.097
18.697
Rocker arm I.D.
10.000-10.015
10.10
Rocker arm shaft O.D.
9.978-9.987
9.91
Rocker arm-to-shaft clearance
0.013-0.037
0.05
Valve spring free length
33.34
32.0
Valve stem O.D.
IN
4.970-4.985
4.92
EX
4.970-4.985
4.92
Valve guide I.D.
IN
5.000-5.012
5.03
EX
5.000-5.012
5.03
Valve stem-to-guide clearance
IN
0.015-0.042
0.08
EX
0.030-0.057
0.10
TORQUE VALUES
Cylinder head nut
10-12 Nm
Cylinder head bolt
10-12 Nm
Cam sprocket bolt
9 Nm
Cam chain tensioner sealing bolt
25 Nm
Summary of Contents for madass
Page 53: ...50 LUBRICATION SYSTEM...
Page 111: ...10 12 Nm 10 14 Nm 108 CYLINDER PISTON...
Page 112: ...109 ZYLINDER KOLBEN...
Page 129: ...1 2 126 CLUTCH GEARSHIFT LINKAGE Remove the primary drive clutch 1 and clutch center guide 2...
Page 191: ...PICK UP KILL SWITCH RPM STOP B R G G G Bl W 188 IGNITION SYSTEM SCHEMA...
Page 192: ...PICK UP KILLSCHALTER DREHZAHLBEGRENZER Z NDANGLEICHER B R G G G Bl W 189 Z NDSYSTEM DIAGRAM...
