Yamaha YZ250(P)/LC, Руководство по эксплуатации для владельца

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4-30
CYLINDER HEAD, CYLINDER AND PISTON
ENG
EC475382
Cylinder head and cylinder
1. Apply:
9
Engine oil
To piston
1
piston ring
2
and cylinder sur-
face.
2. Install:
9
Cylinder
1
c C
Make sure the piston rings are properly
positioned. Install the cylinder with one
hand while compressing the piston rings
with the other hand.
NOTE:
After installing, check the smooth movement of
the piston.
3. Install:
9
Nut (cylinder)
1
NOTE:
Tighten the nuts in stage, using a crisscross pat-
tern.
3. Install:
9
Piston
1
9
Piston pin
2
9
Piston pin clip
3
NOTE:
9
The arrow
a
on the piston dome must point to
exhaust side.
9
Before installing the piston pin clip, cover the
crankcase with a clean rag to prevent the pis-
ton pin clip from falling into the crankcase cavi-
ty.
c C
Do not allow the clip open ends to meet the
piston pin slot
b b
.
35 Nm (3.5 m•kg, 25 ft•lb)
5NX-9-30-4B 6/7/01 1:56 PM Page 6