Yamaha TMAX XP500F 2015 Service Manual page 101

haust camshaft sprocket must align with the
cylinder head mating surface as shown in the
illustration.
c. Measure the valve clearance with a thickness
gauge "1".
TIP
• If the valve clearance is incorrect, record the
measured reading.
• Measure the valve clearance in the following
sequence.
Valve clearance measuring sequence
Cylinder #1 → #2
b
a
3-6
PERIODIC MAINTENANCE
#2
A
A. Front
d. To measure the valve clearances of the other
cylinders, starting with cylinder #1 at TDC,
turn the crankshaft clockwise as specified in
the following table.
A
0˚
#1
B
#2
A. Degrees that the crankshaft is turned
clockwise
B. Cylinder
C. Combustion cycle
Cylinder #2
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9. Remove:
• Camshafts
TIP
• Refer to "CAMSHAFTS" on page 5-10.
• When removing the timing chain and cam-
shafts, fasten the timing chain with a wire to re-
trieve it if it falls into the crankcase.
10.Adjust:
• Valve clearance
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a. Remove the valve lifter "1" and the valve pad
"2" with a valve lapper "3".
Valve lapper
90890-04101
Valve lapping tool
YM-A8998
#1
360˚ 720˚
C
C
360°
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