Yamaha F50D, Руководство по обслуживанию

Страница: 143 / 372

7-2
0
1
2
3
4
5
6
7
8
9
10
A
TIP:
The actual oil pressure may vary depending
on the temperature and viscosity of the
engine oil.
5. Remove the oil pressure gauge
1
.
6. Install the oil pressure switch.
7. Connect the oil pressure switch lead, and
then tighten the oil pressure switch lead
terminal bolt.
Checking the pulser coil air gap
1. Turn the flywheel magnet clockwise to
align the protrusion of the flywheel mag-
net with the pulser coil protrusion.
2. Measure the gap
a
between both protru-
sions with a thickness gauge
1
. Adjust if
out of specification.
Adjusting the pulser coil air gap
1. Remove the flywheel magnet nut and fly-
wheel magnet. See “Removing the fly-
wheel magnet” (7-5).
2. Loosen the pulser coil screws, adjust the
pulser coil
1
position, and then tighten
the screws temporarily.
3. Set the flywheel magnet and then check
the pulser coil air gap again.
4. Tighten the pulser coil screws and fly-
wheel magnet nut to the specified
torques.
Checking the valve clearance
Measure the valve clearances when the
engine is cold.
Do not turn the flywheel magnet counter-
clockwise, otherwise the water pump
impeller may be damaged.
1. Remove the flywheel magnet cover, and
then disconnect the spark plug wires and
blowby hose
1
.
2. Remove the spark plugs, fuel pump
2
,
and cylinder head cover
3
.
Oil pressure (reference data):
160.0 kPa (1.6 kgf/cm
2
, 23.2 psi)
at 60 °C (140 °F) with SL 10W-30
engine oil and at 900 r/min
Pulser coil air gap
a
:
0.5–1.0 mm (0.02–0.04 in)
1
a
Pulser coil screw:
4 N·m (0.4 kgf·m, 3.0 ft·lb)
Flywheel magnet nut:
157 N·m (15.7 kgf·m, 115.8 ft·lb)
1
1
2
3
Power unit (check and adjustment)