Yamaha FJR13AG Service Manual page 141

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 → #4 → #3
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. Degrees that the crankshaft is turned
clockwise
B. Cylinder
C. Combustion cycle
PERIODIC MAINTENANCE
Cylinder #2
Cylinder #4
Cylinder #3
▲ ▲▲▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲
5. Remove:
• Camshafts
TIP
• Refer to "CAMSHAFTS" on page 5-12.
• 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.
6. Adjust:
• Valve clearance
▼ ▼▼▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼
a. Remove the valve lifter "1" and the valve pad
"2" with the valve lapper "3".
Valve lapper
90890-04101
Valve lapping tool
YM-A8998
TIP
• Cover the timing chain opening with a rag to
prevent the valve pad from falling into the
crankcase.
• Make a note of the position of each valve lifter
"1" and valve pad "2" so that they can be in-
stalled in the correct place.
3-6
180°
360°
540°
▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲ ▲▲▲ ▲ ▲▲▲
▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼ ▼▼▼ ▼ ▼▼▼