Yamaha 2012 TMAX XP500A Service Manual page 276

▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼▼
a. Turn the crankshaft clockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the "I" mark "a" on the
generator rotor with the stationary pointer
"b" on the generator cover.
c. Install the timing chain onto both camshaft
sprockets, and then install the camshafts
onto the cylinder head.
TIP
• Lubricate the camshaft journal with the
molybdenum disulfide oil.
• When installing the timing chain, start with
the exhaust camshaft and be sure to keep
the timing chain as tight as possible on the
exhaust side.
• The camshafts should be installed onto the
cylinder head so that the alignment marks "c"
on the intake camshaft sprocket and the
alignment marks "d" on the exhaust camshaft
sprocket align with the cylinder head mating
surface, as shown in the illustration.
ECA4B51015
Do not turn the crankshaft when installing
the camshafts to avoid damage or improper
valve timing.
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
2. Install:
• Dowel pins
• Exhaust camshaft cap "1"
• Intake camshaft cap "2"
TIP
Make sure each camshaft cap is installed in its
original place. Refer to the identification marks
as follows:
"IN": Intake
"EX": Exhaust
3. Install:
• Camshaft cap bolts
Camshaft cap bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
ECA13730
The camshaft cap bolts must be tightened
evenly or damage to the cylinder head,
camshaft caps, and camshafts will result.
5-15
CAMSHAFTS