bolt pattern YAMAHA WR 450F 2016 User Guide

CRANKCASE
6-73
• Oil delivery passagesObstruction  Blow out with compressed
air.
EAS2GC1315INSTALLING THE OIL SEAL
1. Install:
• Oil seal “1” (to left crankcase)
EAS2GC1316ASSEMBLING THE CRANKCASE
1. Install:• Bearing cover plate
TIP
• Install the bearing by pressing its outer race parallel.
• To prevent the bearing cover plate screw (crankshaft) “1” from becoming loose, crimp
the screw head periphery “a” into the concave
“b” using a punch etc. In so doing, take care
not to damage the screwdriver receiving hole
in the screw.
2. Apply: • Sealant(to the crankcase mating surface) 3. Install:
• Dowel pins “1”
• Crankcase “2”(to the left crankcase)
TIP
• Apply the lithium-soap-based grease on the
O-ring.
• Fit the right crankcase onto the left crankcase. Tap lightly on the case with soft hammer.
• When installing the crankcase, the connecting rod should be positioned at top dead center
(TDC).
• Tighten the bolts in a crisscross pattern in two
(2) stages, with 1/4 turn each.
Installed depth “a”
0.0–0.5 mm (0.00–0.02 in)
Bearing cover plate 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
LOCTITE®
Bearing cover plate (crankshaft) 18 Nm (1.8 m·kgf, 13 ft·lbf)
New
1
a
T R..
a
b
1
1
Yamaha Bond No.121590890-85505
(Three Bond No.1215®)
Crankcase bolt 12 Nm (1.2 m·kgf, 8.7 ft·lbf)
3. 45 mm (1.77 in)
4. 60 mm (2.36 in)
5. 75 mm (2.95 in)
T R..
4 3
5
3
3
3
4 5
4
3
1
12