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6-2 Precautions in Operation
General Information
This chapter is contained maintenance and service for cylinder head, valve, and camshaft as well as
rocker arm.
Cylinder head service can be carried out when engine is in frame
Specification
Item Standard Limit
Compression pressure 12+/2 kg/cm2 ---
Camshaft Height of cam lobe
Intake
Exhaus
t
Rocker arm ID of valve rocker arm
OD of valve rocker arm shaft
Valve OD of valve stem Intake
Exhaus
t
Guide seat
Clearance between
valve stem and
guide
Intake
Exhaus
t
Free length of valve spring
Valve seat width
Tilt angle of cylinder head --- 0.05
Torque Value
Cylinder head cover bolt 1.0~1.4kgf-m
Exhaust pipe stud bolt 2.4~3.0kgf-m
Cylinder head bolt 1.0~1.4kgf-m
Cylinder head Nut 3.6~4.0kgf-m
Sealing bolt of cam chain auto-tensioner 0.8~1.2kgf-m
Bolt of cam chain auto-tensioner 1.2~1.6kgf-m
Cylinder side cover bolt 1.0~1.4kgf-m
Cam sprocket bolt 1.0~1.4kgf-m
Tappet adjustment screw nut 0.7~1.1kgf-m
Spark plug 1.0~1.2kgf-m
Tools
Special service tools
Valve reamer: 5.0mm
Valve guide driver: 5.0mm
Valve spring compressor
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