Motive Power Industry BLUR 150, Service Manual

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For 4T engine only:
oil level is too high
oil level is too low
oil does not interchange
oil route is blocked
insufficient oil pumping from
oil pump
piston and cylinder worn out
mixture is too lean
bad quality of the fuel
too much carbon in the combustion room
ignition timing is too early
too much carbon in the combustion room
bad quality of the fuel
clutch slip
mixture is too lean
ignition timing is too early
Oil level is normal
Oil level is
Not normal
Check the lubrication
of cylinder head
Normal Abnormal
Check engine overheat
Or not
Not overheat
overheat
Running accelerately or
High speed continuously
No knocking
knocking
Check the oil level in crankcase
Is too much or dirty
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