Generic XOR 50 ccm, Руководство по обслуживанию

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Roller and sliding surface
Inspect each roller and sliding surface for wear or
damage.
Driving face spring
Measure the free distance of the driven face spring. If
the length is shoter than the service limit, replace the
spring with a new one.
service limit: 104.5mm(4.11in)
Driven face pin and oil seal
Turn the driven face and check to see that the driven
faces turn smoothly. If any stickiness or hitches are
found, visually inspect the lip of oil seal, driven face
sliding surface and sliding pins for wear or damage.
Driven face
inspect the belt contacting surface of bothdriven
faces for any scratches, wear and damage.
Replace driven face with a new one if there are
any abnormality.
Cylinder head
Decarbon the combusion chamber.
Check the surface of the clinder head as shown
in the illustration for distortion with a straightedge
and thickness gauge, taking a clearance reading
at several places.
service limit
：
0.05mm(0.002in)