Removing The Camshafts - Yamaha 2007 XP500 Service Manual

EAS23810

REMOVING THE CAMSHAFTS

1. Remove:
Timing plug "1"
G
2. Align:
"I"mark "a" on the A.C. magneto rotor (with
G
the stationary pointer "b" on the A.C. magne-
to cover)
MMMMMMMMMMMMMMMMMMMMMM
a. Turn the crankshaft counterclockwise.
b. When piston #1 is at TDC on the compres-
sion stroke, align the "I" mark "a" with the sta-
tionary pointer "b" on the A.C magneto cover
NOTE:
TDC on the compression stroke can be found
G
when the camshaft lobes are turned away from
each other.
In order to be sure that the piston is at TDC, the
G
alignment mark "c" on the intake camshaft
sprocket and the alignment mark "d" on the ex-
haust camshaft sprocket must align with the
cylinder head mating surface as shown in the
illustration.
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3. Remove:
Timing chain tensioner "1"
G
Timing chain tensioner gasket "2"
G
1
4. Remove:
ECA15B1022
CAUTION:
Before removing the camshafts from the cyl-
inder head, tilt up the engine at least 25°.
Intake camshaft cap "1"
G
Exhaust camshaft cap "2"
G
Dowel pins
G
ECA15B1023
CAUTION:
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
5-8
CAMSHAFTS
2