SPEC
2-2
ENGINE SPECIFICATIONS
Item
Standard
Limit
Engine
Engine type
Liquid cooled 2-stroke, gasoline
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Displacement
84.7 cm
3
(5.17 cu.in)
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Cylinder arrangement
Single cylinder, forward inclined
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Bore
×
stroke
47.5
×
47.8 mm (1.870
×
1.882 in)
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Compression ratio
8.2 : 1
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Fuel
Recommended fuel
Premium unleaded gasoline only
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Fuel tank capacity
Total
5.0L (1.09 Imp gal, 1.30 US gal)
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Lubrication system
Premix (30 : 1) (Yamalube 2-R)
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Transmission oil
Recommended oil
Yamalube 4 (10W-30) or SAE 10W-30
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API service SG type or higher
JASO standard MA
Periodic oil change
0.50 L (0.44 Imp qt, 0.53 US qt)
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Total amount
0.55 L (0.48 Imp qt, 0.58 US qt)
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Cooling system
Coolant capacity (including all routes) 0.54 L (0.48 Imp qt, 0.57 US qt)
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Radiator capacity
0.32 L (0.28 Imp qt, 0.34 US qt)
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Radiator cap opening pressure
93 ~ 123 kPa (0.93 ~ 1.23 kg / cm
2
,
13.2 ~ 17.5 psi)
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Radiator core
Width
117.8 mm (4.64 in)
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Height
240.0 mm (9.45 in)
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Depth
32.0 mm (1.26 in)
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Water pump
Water pump type
Single suction centrifugal pump
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Reduction ratio
25 / 18 (1.388)
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Starting system
Kickstarter
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Spark plug
Model (manufacturer)
×
quantity
BR10EG (NGK)
×
1
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Spark plug gap
0.5 ~ 0.6 mm (0.0197 ~ 0.0236 in)
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Cylinder head
Volume
7.14 cm
3
(0.44 cu.in)
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Max. warpage
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0.03 mm
(0.0012 in)
ENGINE SPECIFICATIONS
