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SPEC
ENGINE SPECIFICATIONS
Cylinder
Cylinder arrangement Forward-inclined single cylinder ----
Bore × stroke 100.0 × 84.0 mm (3.94 × 3.31 in) ----
Compression ratio 10 : 1 ----
Bore 100.000 ~ 100.010 (3.9370 ~ 3.9374 in) 100.080 mm
(3.9402 in)
Maximum taper ---- 0.05 mm
(0.002 in)
Maximum out-of-round ---- 0.05 mm
(0.002 in)
Piston
Piston-to-cylinder clearance 0.030 ~ 0.055 mm (0.0012 ~ 0.0022 in) 0.13 mm
(0.0051 in)
Diameter D 99.955 ~ 99.970 mm (3.9352 ~ 3.9358 in) ----
Height H 10.0 mm (0.39 in) ----
Piston pin bore (in the piston)
Diameter 23.004 ~ 23.015 mm (0.9057 ~ 0.9061 in) 23.045 mm
(0.9073 in)
Offset 0.50 mm (0.0197 in) ----
Offset direction Intake side ----
Piston pin
Outside diameter 22.991 ~ 23.000 (0.9052 ~ 0.9055 in) 22.971 mm
(0.9044 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) 1.20 × 3.80 mm (0.047 × 0.150 in) ----
End gap (installed) 0.20 ~ 0.35 mm (0.0079 ~ 0.0138 in) 0.60 mm
(0.0236 in)
Ring side clearance 0.030 ~ 0.080 mm (0.0012 ~ 0.0031 in) 0.13 mm
(0.0051 in)
Item Standard Limit
H
D
T
B