Yamaha YW125Y_ Utility Trailer User Manual


 
2-2
SPEC
ENGINE SPECIFICATIONS
Item
Standard Limit
ENGINE SPECIFICATIONS
Engine
Engine type Air-cooled, 4-stroke, SOHC
Displacement 0.125L (125cm
3
,
7.63cu-in)
Cylinder arrangement Forward inclined
single cylinder
Bore × stroke 52.4 × 57.9mm (2.06 × 2.28in)
Compression ratio 10:1
Engine idle speed 1700 ~ 1900r/min
Vacuum pressure at engine idle speed 37 ~ 47kPa
(281 ~ 357mmHg,
11.06 ~ 14.05inHg)
at 1800r/min
Standard compression pressure 1350kPa
(at sea level) (13.5kgf/cm
2
, 192psi)
at 1800r/min
Fuel
Recommended fuel Regular unleaded
gasoline only
Fuel tank capacity
Total 6.0L
(1.59 US gal, 1.32 Imp. gal)
Engine oil
Lubrication system Wet sump
Recommended oil SAE20W-40 or SAE10W-30
API service SG type or higher
JASO standard MA
Quantity
Periodic oil change 0.80 ~ 0.90L
(0.87 ~ 0.98 US qt,
0.74 ~ 0.83 Imp. qt)
Total amount 0.85 ~ 0.95L
(0.9 ~ 1.0 US qt,
0.75 ~ 0.84 Imp. qt)
Final gear oil
Recommended oil SAE10W-30 type SE motor oil
Periodic oil change 0.12 ~ 0.14L
(0.13 ~ 0.15 US qt,
0.11 ~ 0.12 Imp. qt)
Total amount 0.14 ~ 0.16L
(0.15 ~ 0.17 US qt,
0.12 ~ 0.14 Imp. qt)
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