Yamaha WR250FR 2002, Руководство по эксплуатации для владельца, Страница: 146 / 343

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ENG
CAMSHAFTS
REMOVAL POINTS
Camshaft
1. Remove:
• Timing mark accessing screw
1
• Crankshaft end accessing screw
2
2. Align:
• T.D.C. mark
With align mark.
Checking steps:
• Turn the crankshaft counterclockwise with
a wrench.
• Align the T.D.C. mark
a
on the rotor with
the align mark
b
on the crankcase cover
when piston is at T.D.C. on compression
stroke.
NOTE:
In order to be sure that the piston is at Top
Dead Center, the punch mark
c
on the
exhaust camshaft and the punch mark
d
on
the intake camshaft must align with the cyl-
inder head surface, as shown in the illustra-
tion.
3. Remove:
• Timing chain tensioner cap bolt
1
• Timing chain tensioner
2
• Gasket
4. Remove:
• Bolt (camshaft cap)
1
• Camshaft cap
2
• Clip
NOTE:
Remove the bolts (camshaft cap) in a criss-
cross pattern, working from the outside in.
CAUTION:
The bolts (camshaft cap) must be removed
evenly to prevent damage to the cylinder
head, camshafts or camshaft caps.
1
2
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