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SPEC
ENGINE SPECIFICATIONS
Winding direction (top view)
Intake
Clockwise
----
Exhaust
Clockwise
----
Cylinder
Cylinder arrangement
Forward-inclined single cylinder
----
Bore
×
stroke
83.0
×
73.0 mm (3.27
×
2.87 in)
----
Compression ratio
10.6 : 1
----
Bore
83.000 ~ 83.010 mm (3.2677 ~ 3.2681 in)
----
Maximum taper
----
0.05 mm
(0.002 in)
Piston
Piston-to-cylinder clearance
0.060 ~ 0.075 mm (0.0024 ~ 0.0030 in)
0.15 mm
(0.0059 in)
Diameter D
82.930 ~ 82.945 mm (3.2650 ~ 3.2656 in)
----
Height H
5.0 mm (0.20 in)
----
Piston pin bore (in the piston)
Diameter
20.004 ~ 20.015 mm
(0.7876 ~ 0.7880 in)
20.045 mm
(0.7892 in)
Offset
1.0 mm (0.0394 in)
----
Offset direction
Intake side
----
Piston pin
Outside diameter
19.991 ~ 20.000 mm
(0.7870 ~ 0.7874 in)
19.971 mm
(0.7863 in)
Piston-pin-to-piston-pin-bore clear-
ance
0.004 ~ 0.024 mm (0.0002 ~ 0.0009 in)
0.074 mm
(0.0029 in)
Piston rings
Top ring
Ring type
Barrel
----
Dimensions (B
×
T)
1.00
×
2.70 mm (0.04
×
0.11 in)
----
End gap (installed)
0.20 ~ 0.35 mm (0.0079 ~ 0.0138 in)
0.50 mm
(0.0197 in)
Ring side clearance
0.030 ~ 0.070 mm (0.0012 ~ 0.0028 in)
0.100 mm
(0.0039 in)
Item
Standard
Limit
H
D
T
B
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