•
Use a screwdriver to remove dirt particles from the
cooling fins.
•
Clean all parts.
•
Examine all the parts for damage and wear.
Examine the piston and cylinder for damage and
To examine the piston on page 36
and
To examine the cylinder on page 37.
•
Examine the piston pin.
a) If it is blue, it must be replaced.
b) The piston pin must be stable or the piston and
the piston pin must be replaced.
c) If the needle bearing has discoloration or
damages, replace it.
•
Examine the snap rings. If they have cracks or
discoloration, replace them.
7.13.4 To examine the piston
•
Make sure that the piston pin bearing is not
damaged.
•
Make sure that the piston pin does not have
damages on the surface against the bearing.
•
Make sure that the piston ring can move freely in the
groove.
•
Put the piston ring in the cylinder and measure the
space with an air gap tool. The space must not be
more than 1 mm.
•
Examine the surface of the piston.
A
B
Score marks on the pis-
ton (A).
The carburetor is incor-
rectly adjusted. Too high
engine speed
Too low octane fuel.
Incorrect oil mixture in
the fuel.
Carbon buildup (B).
The carburetor is incor-
rectly adjusted.
Incorrect oil mixture in
the fuel.
Piston ring damage.
Too high engine speed.
Piston ring worn out.
Too large piston ring
groove.
36 - Repair instructions
1351 - 002 - 25.11.2020
Содержание CHTZ60
Страница 1: ...Workshop manual CHTZ60 English 1351 002 25 11 2020...
Страница 7: ...T27 6 8 Nm T27 6 9 Nm 10 15 Nm 8 mm 6 9 Nm T27 4 6 Nm T27 3 5 Nm 1351 002 25 11 2020 Servicing data 7...
Страница 51: ...1351 002 25 11 2020 Technical data 51...
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