Engine Specifications - Yamaha MBK MW125 2014 Service Manual

EAS20014

ENGINE SPECIFICATIONS

Engine
Engine type
Displacement
Cylinder arrangement
Bore × stroke
Compression ratio
Standard compression pressure (at sea level)
Minimum–maximum
Starting system
Fuel
Recommended fuel
Fuel tank capacity
Engine oil
Lubrication system
Recommended brand
Type
Recommended engine oil grade
Engine oil quantity
Quantity (disassembled)
Periodic oil change
Final transmission oil
Type
Quantity
Oil filter
Oil filter type
Oil pump
Oil pump type
Inner-rotor-to-outer-rotor-tip clearance
Limit
Outer-rotor-to-oil-pump-housing clearance
Limit
Cooling system
Recommended antifreeze
Radiator capacity (including all routes)
Coolant reservoir capacity (up to the maximum level
mark)
Radiator cap opening pressure
ENGINE SPECIFICATIONS
Liquid cooled 4-stroke, SOHC
124 cm³
Single cylinder
52.4 × 57.9 mm (2.06 × 2.28 in)
10.9 : 1
1600 kPa/725 r/min (16.0 kgf/cm²/725 r/min,
227.6 psi/725 r/min)
1392–1792 kPa/725 r/min (13.9–17.9
kgf/cm²/725 r/min, 198.0–254.9 psi/725 r/min)
Electric starter
Regular unleaded gasoline (Gasohol (E10)
acceptable)
6.6 L (1.74 US gal, 1.45 Imp.gal)
Wet sump
YAMALUBE
SAE 10W-40, 20W-40 or 20W-50
API service SG type or higher, JASO standard
MA or MB
0.90 L (0.95 US qt, 0.79 Imp.qt)
0.80 L (0.85 US qt, 0.70 Imp.qt)
YAMALUBE 10W-40 or SAE 10W-30 type SE
motor oil
0.20 L (0.21 US qt, 0.18 Imp.qt)
Centrifugal
Trochoid
0.150 mm (0.0059 in)
0.23 mm (0.0091 in)
0.13–0.18 mm (0.0051–0.0071 in)
0.25 mm (0.0098 in)
YAMAHA GENUINE COOLANT only
0.37 L (0.39 US qt, 0.33 Imp.qt)
0.33 L (0.35 US qt, 0.29 Imp.qt)
93.3–122.7 kPa (0.93–1.23 kgf/cm², 13.5–17.8
psi)
2-2