Synchronizing The Throttle Bodies - Yamaha FZ1-N 2007 Service Manual

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Example:
If the valve pad is marked "158", the pad
thickness is 1.58 mm (0.062in)
d. Calculate the sum of the values obtained in
steps (b) and (c) to determine the required
valve pad thickness and the valve pad
number.
Example:
1.58 mm (0.062 in) + 0.05 mm (0.002 in) =
1.63 mm (0.064 in)
The valve pad number is 163.
e. Round off the valve pad number according
to the following table, and then select the
suitable valve pad.
Last digit
0,1,2
3,4,5,6
7,8,9
NOTE:
Refer to the following table for the available
valve pads.
Valve pad range
Valve pad thickness
Available valve pads
Example:
Valve pad number = 163
Rounded value = 165
New valve pad number = 165
f. Install the new valve pad "1" and the valve
lifter "2".
NOTE:
• Lubricate the valve lifter with engine oil.
• Install the valve lifter and the valve pad in the
correct place.
email: info@motomatrix.co.uk
Rounded value
0
5
10
Nos. 150–240
1.50–2.40 mm
(0.0591–0.0945 in)
25 thicknesses in
0.05 mm (0.002 in)
increments
• The valve lifter must turn smoothly when
rotated by hand.
g. Install the exhaust and intake camshafts,
timing chain and camshaft caps.
Camshaft cap bolt
10 Nm (1.0 m·kg, 7.2 ft·lb)
NOTE:
• Refer to "CAMSHAFTS" on page 5-9.
• Lubricate the camshaft bearings, camshaft
lobes and camshaft journals.
• First, install the exhaust camshaft.
• Align the camshafts marks with the camshaft
cap marks.
• Turn the crankshaft clockwise several full
turns to seat the parts.
h. Measure the valve clearance again.
i. If the valve clearance is still out of specifi-
cation, repeat all of the valve clearance
adjustment steps until the specified clear-
ance is obtained.
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7. Install:
• All removed parts
NOTE:
For installation, reverse the removal proce-
dure.
EAS20570

SYNCHRONIZING THE THROTTLE BODIES

NOTE:
Prior to synchronizing the throttle bodies, the
valve clearance and the engine idling speed
should be properly adjusted and the ignition
timing should be checked.
1. Stand the vehicle on a level surface.
NOTE:
Place the vehicle on a suitable stand.
3-6
ENGINE