Yamaha YZFR6V User Manual

CRANKCASE
5-57
EAS25550
DISASSEMBLING THE CRANKCASE
1. Place the engine upside down.
2. Remove:
• Crankcase bolts
NOTE:
• Loosen each bolt 1/4 of a turn at a time. After
all of the bolts are fully loosened, remove them.
• Loosen the bolts in decreasing numerical order
(refer to the numbers in the illustration).
• The numbers embossed on the crankcase in-
dicate the crankcase tightening sequence.
• M8 × 115 mm bolts: “8”, “9”
• M8 × 85 mm bolts: “1”–“7”, “10”
• M8 × 65 mm bolts: “11”, “12”
• M6 × 80 mm bolt: “28”
• M6 × 65 mm shoulder bolts: “13”, “14”
• M6 × 65 mm bolts: “16”, “20”, “21”
• M6 × 55 mm bolts: “15”, “22”–“27”
• M6 × 45 mm bolts: “17”–“19”
3. Remove:
• Lower crankcase
CAUTION:
ECA13900
Tap on one side of the crankcase with a soft-
face hammer. Tap only on reinforced por-
tions of the crankcase, not on the crankcase
mating surfaces. Work slowly and carefully
and make sure the crankcase halves sepa-
rate evenly.
EAS25580
CHECKING THE CRANKCASE
1. Thoroughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
3. Check:
• Crankcase
Cracks/damage → Replace.
• Oil delivery passages
Obstruction → Blow out with compressed air.
EAS25600
CHECKING THE OIL PIPE
1. Check:
• Oil pipe
Damage → Replace.
Obstruction → Wash and blow out with com-
pressed air.
EAS25620
CHECKING THE TIMING CHAIN
Refer to “CAMSHAFTS” on page 5-7.
EAS25640
ASSEMBLING THE CRANKCASE
1. Lubricate:
• Crankshaft journal bearings
(with the recommended lubricant)
2. Apply:
• Sealant
(onto the crankcase mating surfaces)
NOTE:
Do not allow any sealant to come into contact
with the oil gallery or crankshaft journal bear-
ings. Do not apply sealant to within 2–3 mm
(0.08–0.12 in) of the crankshaft journal bearings.
3. Install:
• Dowel pins
4. Set the shift drum assembly and transmission
gears in the neutral position.
5. Install:
• Lower crankcase “1”
(onto the upper crankcase “2”)
2
6
9
8
1
4
3
5
7
10
13
25
26
14
20
12
21
11
15
19
18
16
28
27
17
24
23
22
Recommended lubricant
Engine oil
Yamaha bond No. 1215
90890-85505
(Three Bond No.1215
®
)
1. Three Bond No.1215
®
2. Three Bond No.1280B
1
2

Yamaha YZFR6V Specifications

General

Brand	Yamaha
Model	YZFR6V
Category	Motorcycle
Language	English