Generic XOR 50 ccm, Руководство по обслуживанию

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10
Cylinder head nuts and exhaust pipe bolts
Tighten at 500 km, and each service.
If cylinder head nuts are not tightened to the
specified torque, may result in leakage of
compressed fuel-air mixture and reduce
output, tighten the cylinder head nuts in the
following procedures:
：
1
．
Remove the frame lower covers.
2
．
Remove the cylinder head cover bolt.
3
．
Remove spark plug cap.
4
．
Tighten the nuts evenly one by one to the their
specified torque. Tighten the nuts in the order
indicated.
Tightening torque
：
Cylinder head nut
：
15-18N.m
Exhaust pipe bolt
：
15-18N.m
Cylinder and cylinder head
Remove carbon every 6000 km
（
4000 miles
，
12
months
）
Carbon deposits in the combustion chamber
and the cylinder head will raise the compression
ratio and may cause preignition and
overheating. Carbon deposited at the exhaust
port of the cylinder will prevent the flow of
exhaust gases, reducing the output. Remove
carbon deposits periodically.