CRANKCASE
5-56
EAS25570
DISASSEMBLING THE CRANKCASE
1. Remove:
●
Crankcase bolts
NOTE:
Loosen each bolt 1/4 of a turn at a time, in two
stages and in a crisscross pattern. After all of the
bolts are fully loosened, remove them.
2. Turn:
●
Shift drum segment
NOTE:
Turn the shift drum segment to the position
shown in the illustration. In this position, the shift
drum segment’s teeth will not contact the crank-
case during crankcase separation.
3. Remove:
●
Right crankcase
CAUTION:
EC3C51004
●
Tap on one side the crankcase with a
soft-face hammer. Tap only reinforced por-
tions of the crankcase.
●
Do not damage the crankcase mating sur-
faces.
●
Remove the crankcase right halves first.
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.
Obstruction
→
Blow out with compressed air.
EAS3C51011
CHECKING THE TIMING CHAIN,
CRANKSHAFT SPROCKET, TIMING CHAIN
GUIDE (INTAKE SIDE)
1. Check:
●
Timing chain
Crack/stiffness
→
Replace the camshaft
sprocket, timing chain, and crankshaft
sprocket as a set.
2. Check:
●
Crankshaft sprocket
Refer to “CYLINDER HEAD” on page 5-6.
3. Check:
●
Timing chain guide (intake side)
Damage/wear
→
Replace.
EAS3C51012
CHECKING THE BEARING AND OIL SEAL
1. Check:
●
Bearing
Abnormal sound/rough movement/loose-
ness
→
Replace.
2. Check:
●
Oil seal
Damage/wear
→
Replace.
EAS25700
ASSEMBLING THE CRANKCASE
1. Thoroughly clean all the gasket mating sur-
faces and crankcase mating surfaces.
2. Apply:
●
Sealant
(onto the crankcase mating surfaces)
NOTE:
Do not allow any sealant to come into contact
with the oil gallery.
3. Install:
●
Right crankcase
(to the left crankcase)
NOTE:
●
Turn the shift drum segment as shown so that
the shift drum segment teeth do not contact the
Yamaha bond No. 1215 (Three
Bond No.1215®)
90890-85505
Crankcase bolt
10 Nm (1.0 m•kg, 7.2 ft•lb)
T
R
.
.
All manuals and user guides at all-guides.com
Содержание XT250X 2008
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Страница 237: ...CHARGING SYSTEM 7 12 2 A C magneto 3 Rectifier regulator 4 Fuse 6 Battery All manuals and user guides at all guides com...
Страница 239: ...CHARGING SYSTEM 7 14 All manuals and user guides at all guides com...
Страница 243: ...LIGHTING SYSTEM 7 18 All manuals and user guides at all guides com...
Страница 249: ...SIGNALING SYSTEM 7 24 All manuals and user guides at all guides com...
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