Yamaha RS90K Manuel D'atelier page 462

1
3
b
a
c
d
5. Install:
Installation steps:
• While lightly pressing the timing chain tensioner
NOTE:
Make sure that the tensioner rod has been fully set
clockwise.
• With the timing chain tensioner rod turned all
2
3 Always use a new gasket.
• Tighten the timing chain tensioner bolts 3 to
• Remove the screwdriver, make sure the timing
6. Turn:
7. Inspect:
c
d
5-22
CAMSHAFTS
• Timing chain tensioner
rod by hand, turn the tensioner rod fully clock-
wise with a thin screwdriver 1.
the way into the timing chain tensioner housing
(with the thin screwdriver still installed), install
the gasket and the timing chain tensioner 2
onto the cylinder block.
WARNING
the specified torque.
Timing chain tensioner bolt:
10 Nm (1.0 m · kg, 7.2 ft · lb)
chain tensioner rod releases, and then tighten
the cap bolt to the specified torque.
Cap bolt:
7 Nm (0.7 m · kg, 5.1 ft · lb)
• Crankshaft
(several turns clockwise)
• "I" mark a
Make sure the "I" mark a on the A.C. mag-
neto rotor is aligned with the stationary pointer
b on the A.C. magneto cover.
• Camshaft punch marks c
Make sure the punch marks c in the cylinder
#3 - cam are aligned with the arrow marks d
on the camshaft caps.
Out of alignment → Adjust.
Refer to the installation steps above.
ENG