Yamaha F30B 2018, Service Manual

Page: 216 / 348

7-61
Cylinder block
3. Install:
• Crankshaft pin bearing “1” (into the con-
necting rod “2” and connecting rod cap “3”)
TIP:
• Install the crankshaft pin bearings in the orig-
inal positions.
• Install the protrusions “a” of the crankshaft pin
bearing into the grooves “b” on the connect-
ing rod “2” and connecting rod cap “3”.
4. Install:
• Piston
▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Apply engine oil to the side of the piston,
piston rings, and cylinder wall, and then in-
stall the piston so that the “UP” mark on the
piston crown is facing toward the flywheel
magneto end of the crankshaft.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Install:
• Crankshaft journal bearing “1” (into the cyl-
inder block “2”)
TIP:
• Install the crankshaft journal bearings “1” in
their original positions.
• Align the oil holes “a” in the crankshaft journal
bearings “1” with the oil holes “b” in the cylin-
der block “2”, and then install the crankshaft
journal bearings “1” so that the specified dis-
tances “c”, “d”, “e”, and “f” are obtained.
1
1
2
3
a
a
b
b
1
A
2
B
A. Worldwide
B. USA and Canada
Piston slider “1”
90890-06529
Piston ring compressor “2”
YM-08037
1
1
1
2
a
b
f
e
c
d