Yamaha F4, Руководство по обслуживанию

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POWER UNIT
INSP
ADJ E
3-8
8. Install:
9 Gasket (cylinder head cover)
9 Cylinder head cover
9. Install:
9 Spark plug
c
d
7
7
6
1
2
3
7. Tighten:
9 locknut
6
NOTE:
Tighten the locknut, keeping the adjuster
fixed.
Locknut (rocker arm):
10 Nm (1.0 m•kg, 7.2 ft•lb)
Cylinder head cover:
11 Nm (1.1 m•kg, 8.0 ft•lb)
Checking the spark timing
NOTE:
Spark timing is controlled automatically by
the ignitor ass’y. For this reason only the
checking procedure is shown in this sec-
tion.
1. Set:
9 Tachometer
9 Timing light
To spark plug lead for cylinder.
Tachometer:
YU-08036-A/90890-06760
Timing light:
YU-33277-A/90890-03141
Adjustment steps:
8
Loosen the lock nut and insert the
0.10 mm (0.004 in) feeler gauge be-
tween rocker arm and valve stem.
8
Turn adjuster
7
to obtain the proper
clearance.
Turning in
c c
®
Valve clearance decreases.
Turning out
d d
®
Valve clearance increases.
6. Adjust:
9 Intake valve clearance
9
Exhaust valve clearance