Removing The Camshafts - Yamaha 2009 XP500Y TMAX Service Manual

EAS23810

REMOVING THE CAMSHAFTS

1. Align:
• "I" mark "a" on the generator rotor
(with the stationary pointer "b" on the genera-
tor cover)
M MMM M MMM M M MMM M M MMM M
a. Turn the crankshaft clockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the "I" mark "a" on the gen-
erator rotor with the stationary pointer "b" on
the generator cover.
TIP
• TDC on the compression stroke can be found
when the cylinder #1 camshaft lobes are
turned away from each other.
• In order to be sure that the piston is at TDC, the
alignment hole "c" on the intake camshaft
sprocket and the alignment hole "d" on the ex-
haust camshaft sprocket must align with the
cylinder head mating surface as shown in the
illustration.
M MMM M M MMM M MMM
5-9
EX
L LLL L LLL L L LLL L L LLL L
2. Remove:
• Timing chain tensioner "1"
• Timing chain tensioner gasket "2"
1
2
3. Remove:
• Intake camshaft cap "1"
• Exhaust camshaft cap "2"
• Dowel pins
ECA13720
NOTICE
To prevent damage to the cylinder head,
camshafts or camshaft caps, loosen the
camshaft cap bolts in stages and in a criss-
cross pattern, working from the outside in.
1
2
4. Remove:
• Intake camshaft "1"
• Exhaust camshaft "2"
TIP
To prevent the timing chain from falling into the
crankcase, fasten with a wire "3".
CAMSHAFTS
d c
IN
L LLL L L LLL L LLL