Engine Specifications (Yp250R) - Yamaha 2010 XMAX YP125R Service Manual

EAS20290

ENGINE SPECIFICATIONS (YP250R)

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
Fuel reserve amount
Engine oil
Lubrication system
Type
Recommended engine oil grade
Engine oil quantity
Total amount
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
Oil-pump-housing-to-inner-and-outer-rotor
clearance
Limit
Cooling system
Radiator capacity (including all routes)
Coolant reservoir capacity (up to the maximum level
mark)
Radiator cap opening pressure
ENGINE SPECIFICATIONS (YP250R)
Liquid cooled 4-stroke, SOHC
249 cm³
Forward-inclined single cylinder
69.0 × 66.8 mm (2.72 × 2.63 in)
10.00 :1
1400 kPa/500 r/min (14.0 kgf/cm²/500 r/min,
199.1 psi/500 r/min)
1120–1570 kPa (11.2–15.7 kgf/cm², 159.3–
223.3 psi)
Electric starter
Regular unleaded gasoline only
11.8 L (3.12 US gal, 2.60 Imp.gal)
1.7 L (0.45 US gal, 0.37 Imp.gal)
Wet sump
SAE 10W-30, SAE 10W-40, SAE 15W-40, SAE
20W-40 or SAE 20W-50
API service SF, SG type or higher, JASO
standard MA
1.50 L (1.59 US qt, 1.32 Imp.qt)
1.30 L (1.37 US qt, 1.14 Imp.qt)
SAE 10W-30 type SE motor oil
0.25 L (0.26 US qt, 0.22 Imp.qt)
Paper
Trochoid
Less than 0.15 mm (0.0059 in)
0.23 mm (0.0091 in)
0.013–0.036 mm (0.0005–0.0014 in)
0.106 mm (0.0042 in)
0.04–0.09 mm (0.0016–0.0035 in)
0.16 mm (0.0063 in)
1.00 L (1.06 US qt, 0.88 Imp.qt)
0.25 L (0.26 US qt, 0.22 Imp.qt)
100.0–120.0 kPa (1.00–1.20 kgf/cm², 14.5–17.4
psi)
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