Generic XOR 50 ccm, Руководство по обслуживанию

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If the engine R/MIN doesn’t coincide with the specified r/min range, then
disassemble the clutch.
Clutch shoe---inspect the shoes visually for chips, cracking, uneven wear and burning,
and check the thickness of the shoes with vernier calipers. If the thickness is less than
the following service limit, replace them as a set.
Clutch springs -----visually inspect the clutch springs for strectched coils or broken
coils.
Service limit:
：
2.0mm(0.08in)
CAUTION
：
clutch shoes or springs must be
changed as a set and never individually.
Clutch wheel—inspect visually the condition of the
inner clutch wheel surface for scrolling, cracks, or
uneven wear. Measure inside diameter of the clutch
wheel with inside calipers. Measure the diameter at
several points to check for an out-of-round condition
as well as wear.
Service limit:110.50mm(4.350in)
DRIVE BELT
Remove the drive belt and check for cracks, wear
and separation. Measure the drive belt width with a
vernier calipers. Replace it if the belt width is less
than the service limit or and defect has been found.
Service limit
：
16.0mm(0.630in)
CAUTION
；
Always keep the drive belt away
from any geasy matter.
Drive face
Inspect the belt contact surface of the dirve faces
for wear, scratches or any abnormality. If there is
something unusual, replace the drive face with a
new one.