Periodic maintenance an d a djustment
6-11
6
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.
TIPMake sure that the O-ring is properly
seated.
6. Install engine oil drain bolt A andits 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.TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not mix any chemical additives. Do
not use oils with a
diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a dd ition, do not use oils la bele d
“ENERGY CONSERVING II” or
hi gher.
Make sure that no forei gn mate-
rial enters the crankcase.
8. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
9. Turn the engine off, and then check the oil level and correct it if
necessary.
10. Reset the oil change tripmeter and oil change indicator “OIL
CHANGE”. (See page 3-7 for reset
procedures.)
1. Engine oil drain bolt A
2. Gasket
3. Oil strainer
4. Compression spring
5. O-ring
6. Engine oil drain bolt B
1
3456
2
Tightenin g torque:
Engine oil drain bolt A: 22 Nm (2.2 m·kgf, 16 ft·lbf)
Engine oil drain bolt B:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommen ded en gine oil:
See page 8-1.
Oil quantity: 0.80 L (0.85 US qt, 0.70 Imp.qt)
U2CME2E0.book Page 11 Friday, August 21, 2015 9:16 AM
Specifications
8-1
8
Dimensions:Overall length:1905 mm (75.0 in)
Overall width:
735 mm (28.9 in)
Overall height: 1215 mm (47.8 in)
Seat height: 780 mm (30.7 in)
Wheelbase:
1310 mm (51.6 in)
Ground clearance: 120 mm (4.72 in)
Minimum turning radius: 2300 mm (90.6 in)Wei ght:Curb weight:
152 kg (335 lb) (MW125)
156 kg (344 lb) (MW125A)Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement: 124 cm3
Bore × stroke:
52.4 × 57.9 mm (2.06 × 2.28 in)
Compression ratio:
10.9 : 1
Starting system: Electric starter
Lubrication system: Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-40, 20W-40 or 20W-50
Recommended engine oil grade: API service SG type or higher, JASO
standard MA or MB
Engine oil quantity: Periodic oil change:
0.80 L (0.85 US qt, 0.70 Imp.qt)Final transmission oil:Type:YAMALUBE 10W-40 or SAE 10W-30 type
SE motor oil
Quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):
0.33 L (0.35 US qt, 0.29 Imp.qt)
Radiator (including all routes): 0.37 L (0.39 US qt, 0.33 Imp.qt)
Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity: 6.6 L (1.74 US gal, 1.45 Imp.gal)Fuel injection:Throttle body:
ID mark: 2CM1 00Spark plu g(s):Manufacturer/model:
NGK/CR7E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:Dry, centrifugal automaticTransmission:Primary reduction ratio:
1.000
Secondary reduction ratio: 9.533 (44/15 x 39/12)
Transmission type: V-belt automaticChassis:Frame type:Underbone
Caster angle: 20.0 °
–20 –10 0 1020 30 40 50 C
10 30 50 70 90 110
0 130 F
SAE 20W-50SAE 20W-40
SAE 10W-40
U2CME2E0.book Page 1 Friday, August 21, 2015 9:16 AM
