Yamaha YZF-R25 Service Manual page 290

TIP
• Be sure to fit the pin "a" on the main axle as-
sembly into the hole "b" in the upper crank-
case.
• Thoroughly wipe off any sealant that protrudes
onto the contact surfaces of the generator cov-
er gasket and clutch cover gasket.
• When assembling the crankcase, check that
sealant protrudes from between the crankcase
halves. Do not wipe off the protruding sealant.
1
2
6. Install:
• Crankcase bolt (×21)
TIP
• Lubricate the bolts "1"–"15" and "17"–"21"
threads and mating surfaces with engine oil.
• Lubricate the mating surface of the bolt "16"
with engine oil and apply Yamaha bond No.
1215 to the bolt threads.
• Finger tighten the crankcase bolts.
Yamaha bond No. 1215
90890-85505
(Three bond No.1215®)
• M8 × 80 mm bolt (×6): "1"–"6"
• M8 × 50 mm bolt (×2): "7", "8"
• M6 × 45 mm bolt (×5): "9", "10", "14", "15",
"19"
• M6 × 65 mm bolt (×3): "11", "12", "16"
• M6 × 65 mm bolt (×3) (bolts with copper
New
washers ): "13", "17", "18"
• M6 × 35 mm bolt (×2): "20", "21"
A
b
a
B
A. Lower crankcase
B. Upper crankcase
7. Tighten:
• Crankcase bolts "1"–"6"
• Crankcase bolts "7"–"8"
5-73
CRANKCASE
×6 ×2
8
9
5 1
4 2
×3
×3 ×3
19
18
17
16
15
×2
7
3
6
10
×2
20
11
12
21
13
14