Yamaha MWS150-C, Owner'S Manual

Page: 60 / 98

Perio d ic maintenance an d a d justment
7-13
7
To chan g e the en g ine oil an d clean
the oil strainer
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.
3. Remove the engine oil filler cap
and engine oil drain bolts A and B
to drain the oil from the crankcase.
NOTICE:
When removin g the
en g ine oil d rain b olt B, the O-
rin g , compression sprin g , an d
oil strainer will fall out. Take
care not to lose these parts.
[ECAT1022]
4. Clean the engine oil strainer with
solvent, and then check it for
damage and replace it if neces-
sary.
5. Install the engine oil strainer, com-
pression spring, new O-ring and
engine oil drain bolt B.
TIP
Make sure that the O-ring is properly
seated.
6. Install engine oil drain bolt A and
its new gasket, and then tighten
both drain bolts to their specified
torques.
7. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIP
Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
NOTICE
ECA11621

In or d er to prevent clutch slip-
pa g e (since the en g ine oil also
lu b ricates the clutch), d o not
1. Engine oil drain bolt A
2. Gasket
3. Oil strainer
4. Compression spring
5. O-ring
6. Engine oil drain bolt B
1
3
4
5
6
2
Ti g htenin g torque:
Engine oil drain bolt A:
20 N·m (2.0 kgf·m, 14 lb·ft)
Engine oil drain bolt B:
32 N·m (3.2 kgf·m, 23 lb·ft)
Recommen d e d en g ine oil:
See page 9-1.
Oil quantity:
0.90 L (0.95 US qt, 0.79 Imp.qt)
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