Yamaha TMAX TECH MAX 2020 - Page 254

5-19
CAMSHAFTS
5. Turn:
• Crankshaft
(several turns clockwise)
6. Confirm the timing chain tension properly.
7. Check:
•“I” mark “a”
Make sure that the “I” mark is aligned with the
stationary pointer “b” on the generator cover.
• Camshaft sprocket alignment marks “c” and
“d”
Make sure that the camshaft sprocket align-
ment marks are aligned with the cylinder
head mating surface.
Out of alignment  Correct.
Refer to the installation steps above.
8. Measure:
• Valve clearance
Out of specification  Adjust.
Refer to “ADJUSTING THE VALVE CLEAR-
ANCE” on page 3-5.
9. Install:
• Timing chain guide (upper side)
• Cylinder head cover gasket
(to the cylinder head cover)
TIP
Apply Three bond No. 1541C “1” onto the mating
surfaces of the cylinder head cover and gasket.
10.Install:
• Cylinder head cover
TIP
Tighten the cylinder head cover bolts in stages
and in a crisscross pattern.
b
a
Cylinder head cover bolt
10 N·m (1.0 kgf·m, 7.4 lb·ft)
New
1
T
R
.
.