TGB Hornet 50, Service Manual

Page: 62 / 86

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4-3-3 Assembly of Engine:
4. Assembly of Cylinder:
A. Apply a little TGB oil.
(GA50400002) to piston pin (3)
and then insert into the piston hole.
B. Install the cir-clip (4) of piston pin
and make sure to rotate the
opening of the circlip to be kept
away from the concave area of
the piston.
◎
The cir-clip has to be actually
installed to its position,
or it will cause cylinder jam
during operation.
C.Apply more than 3cc of TGB oil
(GA50400002)evenly on the
inside of the cylinder and the
outside of the piston.
D.Install cylinder gasket (2).
E.Install piston (1) into cylinder.
◎
The arrow mark on the piston
has to be install toward the
exhaust port.
F. Install cylinder head gasket .
G. Install cylinder head (6).
H.Screw the flanged nut (7) of cylinder
head by diagonal step.
Screw Torque: 120
∼
130 kg
•
cm
I. Install the cylinder cowling (9).
J. Tighten the spark plug (8).
Screw Torque: 250
∼
300 kg
•
cm
K.Point the extruded part of
ignition coil to the groove of
cylinder cowling and then tighten the
screw.