Yamaha FZ1-N 2007 Service Manual page 114

Manuals by Motomatrix / www.motomatrix.co.uk / The Solution For Lost Motorcycle Coded Keys
A. Front
d. To measure the valve clearances of the
other cylinders, starting with cylinder #1 at
TDC, turn the crankshaft counterclockwise
as specified in the following table.
Cylinder #2
Cylinder #4
Cylinder #3
A. Degrees that the crankshaft is turned
counterclockwise
B. Cylinder
C. Combustion cycle
▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲▲
5. Remove:
• Camshaft
NOTE:
• Refer to "CAMSHAFTS" on page 5-9.
• When removing the timing chain and cam-
shafts, fasten the timing chain with a wire to
retrieve it if it falls into the crankcase.
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180°
360°
540°
6. 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
NOTE:
• 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
installed in the correct place.
b. Calculate the difference between the speci-
fied valve clearance and the measured
valve clearance.
Example:
Specified valve clearance = 0.11–0.20 mm
(0.004–0.008 in)
Measure valve clearance = 0.25 mm (0.010
in)
0.25 mm (0.010 in)–0.20 mm (0.008 in) =
0.05 mm (0.002 in)
c. Check the thickness of the current valve
pad.
NOTE:
The thickness "a" of each valve pad is marked
in hundredths of millimeters on the side that
touches the valve lifter.
3-5
ENGINE