KAYO MOTOR AU200, Руководство по обслуживанию

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5
发动机
5- 18
Maintenance instructions
The camshaft lubricant is injected into the cylinder head via a control orifice on the engine
casing. This control orifice must not be blocked.
When assembling, apply molybdenum disulfide lubricant on the cam bearing as the basic
lubrication.
Fill the cylinder head cylinder with clean engine oil for lubrication of the camshaft.
Specifications
Item standard
（
mm
）
Maximum
（
mm
）
Camshaft Cam lift
Intake 31.78 ± 0.06 31.4
exhaus
t
31.53 ± 0.06 31.13
Rocker
shaft
inner diameter 12.000~12.018 12.05
Outer diameter 11.972~11.987 11.93
Valve
spring
length
Outer
layer
45.5 45.5
Inner
layer
39.4 39.4
Item standard
（
mm
）
Maximum
（
mm
）
valve
Valve clearance 0.06
—
Valve stem outer
diameter
Intake 5.45~5.465 5.42
exhaus
t
5.430~5.445 5.40
Valve guide inner
diameter
Intake 5.475~5.485 5.53
exhaus
t
5.475~5.485 5.53
Clearance
between
Valve
stem and guide
Intake 0.01~0.035 0.06
exhaus
t
0.03~0.055 0.07
Cylinder
head
Distortion
—
0.1
Valve seat line width 1.1~1.3 1.5