Yamaha RS90GTZ Service Manual page 251

CAMSHAFTS
4. Install:
• Camshaft cap bolts
Camshaft cap bolt:
10 Nm (1.0 m•kgf, 7.2 ft•lbf)
TIP
Tighten the camshaft cap bolts in stages and
in a crisscross pattern, working from the inner
caps out.
NOTICE
• Lubricate the camshaft cap bolts with the
engine oil.
• The camshaft cap bolts must be tightened
evenly or damage to the cylinder head,
camshaft caps, and camshafts will result.
• Do not turn the crankshaft when installing
the camshaft to avoid damage or improper
valve timing.
5. Install:
• Timing chain tensioner gasket
• Timing chain tensioner
Timing chain tensioner bolt:
12 Nm (1.2 m•kgf, 8.7 ft•lbf)
TIP
• Be sure to install the timing chain tensioner
gasket so that its section with the "L" mark
is protruding from the lower left side of the
timing chain tensioner.
• The arrow mark
sioner should face up.
5-26
ENG
on the timing chain ten-