2-15
16
)
Check the timing chain tensioning guard plate (chain tensioning plate, chain
guide plate) for wear. Replace it if the wearing depth is beyond 0.5mm.
17
)
Check the timing driven sprocket and chain for wear. Replace them if
necessary.
2.3.2 Troubleshooting to Valve Train
Description
Damage Form
Trouble Symptom of Component
Trouble Symptom of Motorcycle
Remedy
Rockshaft and
valve rocker
Excessive clearance between
rockshaft and valve rocker
Knock sound
Replace the rockshaft and valve rocker
Valve
Little valve clearance
The valve is impossible to close
completely
Engine fails or is hard to start. Engine
lacks power. Unstable idle speed
Adjust the valve clearance to 0.03
~
0.05mm
Excessive valve clearance
Knock sound
Do.
Carbon deposit on the surface
Valve-to-valve seat fit is not tight
Engine fails or is hard to start. Engine
lacks power. Unstable idle speed
Clear away carbon deposit, grind the
valve seat
Contact area is seriously worn
or has defects such as pits, etc.
Do.
Do.
Do.
Valve stem is seriously worn
Valve stem-to-guide clearance is
too large
Thick blue smoke from exhaust pipe
Replace the valve
The valve stem is deformed
Valve is not closed completely
Engine fails to start
Replace the valve
Valve Spring
Spring is broken
Valve-to-valve seat fit is not tight
Engine fails or is hard to start. Sound
from the cylinder head
Replace the valve spring
Camshaft
Excessive wear for the cam
Air intake/exhaust is not smooth.
Engine lacks power. Too much
noise from valve train
Too much noise. Power lack when riding
Replace the camshaft
Excessive
wear
for
the
camshaft
Hole-to-shaft clearance is too large.
Abnormal sound from cam gear
Too much noise.
Replace the camshaft or shaft sleeve
Timing chain
It is too long
Too long, knock sound
Too much noise. Power lack when riding
Replace the timing chain
Содержание LF200-10P
Страница 36: ...2 28 31 Remove the starting driven gear set and washer then check them for wear Replace the worn part...
Страница 42: ...2 34 17 Check the water pump gear and O ring for wear replace them if necessary O RING...
Страница 54: ...2 46 13 Check the coils of both rotor and stator of magneto for damage Replace the damaged part...
Страница 90: ...4 3 ELECTRIC DIAGRAM...