Yamaha 5HN-28199-13 Manual Do Utilizador
4 - 10
ENG
CYLINDER HEAD
REMOVAL POINTS
Cylinder head
Cylinder head
1. Align:
●
“I” mark
(with stationary pointer)
(with stationary pointer)
Checking steps:
●
Turn the crankshaft counterclockwise with
a wrench.
a wrench.
●
Align the “I” mark
a on the rotor with the
stationary pointer
b on the crankcase
cover. When the “I” mark is aligned with
the stationary pointer, the piston is at the
Top Dead Center (T.D.C.).
the stationary pointer, the piston is at the
Top Dead Center (T.D.C.).
NOTE:
●
In order to be sure that the piston is at Top
Dead Center, the match mark
Dead Center, the match mark
c on the
camshaft sprocket must align with the sta-
tionary pointer
tionary pointer
d on the cylinder head as
shown in the illustration.
●
If there is no valve clearance, rotate the
crankshaft counterclockwise one turn.
crankshaft counterclockwise one turn.
2. Loosen:
●
Camshaft sprocket bolt 1
3. Remove:
●
Timing chain tensioner
●
Camshaft sprocket 2
NOTE:
●
Fasten a safety wire to the timing chain 3 to
prevent it from falling into the crankcase.
prevent it from falling into the crankcase.
●
Remove the bolt 1 while holding the rotor
nut with a wrench.
nut with a wrench.