Yamaha YZ250(V), Руководство по эксплуатации для владельца

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CYLINDER HEAD, CYLINDER AND PISTON
ENG
EC475383
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
.
42 Nm (4.2 m•kg, 30 ft•lb)
1P8-9-31-4B 4/29/05 3:07 PM Page 6