CRANKCASE
5-71
EAS30389
DISASSEMBLING THE CRANKCASE
1. Remove:
• Oil filter cartridge “1”
TIP
Remove the oil filter cartridge with an oil filter
wrench “2”.
2. Remove:
• Primary drive gear bolt “1”
• Washer “2”
• Primary drive gear “3”
TIP
Place an aluminum plate “a” between the bal-
ancer drive gear and the balancer driven gear,
and then loosen the primary drive gear bolt.
3. Remove:
• Crankcase bolt (
×
21)
TIP
• Loosen each bolt 1/4 of a turn at a time, in stag-
es and in a crisscross pattern. After all of the
bolts are fully loosened, remove them.
• Loosen the bolts in the proper sequence as
shown.
• M6
×
35 mm bolt (
×
2): “1”, “2”
• M6
×
45 mm bolt (
×
5): “3”, “7”, “8”, “12”, “13”
• M6
×
65 mm bolt (
×
3) (bolts with copper
washers): “4”, “5”, “9”
• M6
×
65 mm bolt (
×
3): “6”, “10”, “11”
• M8
×
50 mm bolt (
×
2): “14”, “15”
• M8
×
80 mm bolt (
×
6): “16”–“21”
4. Remove:
• Upper crankcase
• Dowel pins
Oil filter wrench
90890-01426
Oil filter wrench
YU-38411
1
2
1
2
3
a
A. Upper crankcase
B. Lower crankcase
×3
×3
×3
×2
6
5
4
3
1
2
11
10
9
8
7
A
×2
×6
×2
14
17
18
21
20
12
16
19
13
15
B
Summary of Contents for YZF-R25
Page 1: ......
Page 2: ......
Page 3: ......
Page 6: ......
Page 8: ......
Page 25: ...BASIC SERVICE INFORMATION 1 16 ...
Page 32: ...SPECIAL TOOLS 1 23 ...
Page 49: ...TIGHTENING TORQUES 2 16 2 6 8 5 4 1 2 6 3 7 2 10 9 A ...
Page 66: ...COOLING SYSTEM DIAGRAMS 2 33 EAS20020 COOLING SYSTEM DIAGRAMS 1 2 3 1 5 4 4 ...
Page 99: ......
Page 128: ...PERIODIC MAINTENANCE 3 29 ...
Page 146: ...GENERAL CHASSIS 5 4 15 1 b b a a 2 ...
Page 200: ...FRONT FORK 4 69 2 b a 1 ...
Page 209: ...SWINGARM AND REAR SHOCK ABSORBER ASSEMBLY 4 78 2 1 1 1 a A B ...
Page 214: ...CHAIN DRIVE 4 83 ...
Page 256: ...CYLINDER AND PISTONS 5 39 1 ...
Page 310: ...TRANSMISSION 5 93 ...
Page 322: ...WATER PUMP 6 11 ...
Page 336: ...THROTTLE BODIES 7 13 c 1 cylinder d 2 cylinder A Left B Right b a d c A B b 1 ...
Page 337: ...THROTTLE BODIES 7 14 ...
Page 338: ...AIR INDUCTION SYSTEM 7 15 EAS20071 AIR INDUCTION SYSTEM 1 2 3 4 5 1 2 ...
Page 342: ...AIR INDUCTION SYSTEM 7 19 ...
Page 345: ......
Page 355: ...ELECTRIC STARTING SYSTEM 8 10 ...
Page 359: ...CHARGING SYSTEM 8 14 ...
Page 371: ...SIGNALING SYSTEM 8 26 ...
Page 417: ...FUEL PUMP SYSTEM 8 72 ...
Page 420: ...ELECTRICAL COMPONENTS 8 75 2 3 4 5 12 11 10 9 8 7 1 6 ...
Page 440: ...ELECTRICAL COMPONENTS 8 95 ...
Page 451: ...SELF DIAGNOSTIC FUNCTION AND DIAGNOSTIC CODE TABLE 9 10 ...
Page 453: ......
Page 454: ......