Adjusting The Valve Clearance - Yamaha XT1200Z(Z) 2010 Service Manual

6. Clean:
• Spark plug
(with a spark plug cleaner or wire brush)
7. Measure:
• Spark plug gap "a"
(with a wire thickness gauge)
Out of specification → Regap.
Spark plug gap
0.8–0.9 mm (0.031–0.035 in)
a
8. Install:
• Spark plug
Spark plug
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
TIP
Before installing the spark plug, clean the spark
plug and gasket surface.
9. Install:
• Ignition coil
Ignition coil bolt
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
LOCTITE®
10.Install:
• Air filter case
Refer to "GENERAL CHASSIS" on page 4-1.
EAS20490

ADJUSTING THE VALVE CLEARANCE

The following procedure applies to all of the
valves.
TIP
• Valve clearance adjustment should be made
on a cold engine, at room temperature.
• When the valve clearance is to be measured or
adjusted, the piston must be at top dead center
(TDC) on the compression stroke.
1. Remove:
• Air filter case
Refer to "GENERAL CHASSIS" on page 4-1.
2 1
PERIODIC MAINTENANCE
• Throttle bodies
Refer to "THROTTLE BODIES" on page 7-5.
• Clutch cover
Refer to "CLUTCH" on page 5-52.
• Cylinder head cover
Refer to "CAMSHAFTS" on page 5-11.
2. Measure:
• Valve clearance
Out of specification → Adjust.
Valve clearance (cold)
Intake
0.10–0.16 mm (0.0039–0.0063 in)
Exhaust
0.22–0.28 mm (0.0087–0.0110 in)
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
A. Front
M MMM M MMM M M MMM M
a. Turn the crankshaft clockwise and align the
pickup rotor K mark "a" and crankcase mating
surface "b".
(At this time, check that the intake cam lobes
"c" and exhaust cam lobes "d" for cylinder #1
are positioned as shown in the illustration. If
the cam lobes are not positioned as shown,
turn the crankshaft clockwise 360 degrees
and recheck the positions of the cam lobes.)
3-5
#2 #1
A
M MMM M M MMM M M MMM M MMM