69W3D1X
4
Features and benefits
1
Power unit
Based on the power unit of the field-proven F50, newly designed parts have been adopted in the
various areas to attain 60 horsepower. The newly designed parts include the intake valves, exhaust
valves, cylinder head, pistons, and the intake silencer.
Cylinder head
The shape of the combustion chamber has been changed to increase its capacity.
The diameter of the intake and exhaust valves have been enlarged to increase output.
1
Combustion chamber
2
Intake valve
3
Exhaust valve
S69W1200
F50 F60
F60F50
83.5 mm
(3.29 in)
84.1 mm
(3.31 in)
84.0 mm
(3.31 in)
84.8 mm
(3.34 in)
30.0 mm (1.18 in)
26.0 mm (1.02 in)
32.0 mm (1.26 in)
26.7 mm (1.05 in)
Identification / Features and benefits
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