Manual

Engine Maintenance And Servicing Manual
Main engine technical indexes and operation parameters
SQR480
Type Line, 4-cyl, four strokes, water-cooling
Cylinder bore diameter (mm) 79.94
Stroke (mm) 79.52
Total displacement (L) 1.596
Compression ratio 9.75 : 1
Nominal power/RPM 62/5500
(kW/r/min)(Total power)
Output maximum torque/RPM
(Nm/r/min)(Total power)
128/3000-2500
Minimum fuel consumption of total power
for external characteristic (g/KW·h)
290
Fuel supply system Single-point
Combustion chamber shape Hemisphere type
Cylinders Working Order 1-3-4-2
Direction of crankshaft rotation Clockwise (Viewed from the front)
Lubrication Mechanical lubrication+Splash feed
Weight (kg)(lbs) 108 (238)
Overall dimensions (mm)
(Length * width * height)
620×610×650
Ignition angle at idle
(Crankshaft angle Before top dead center)
10°±1°
Valve timing (Crankshaft angle)
Intake valve opened Before top dead center 18°
Intake valve closed After bottom dead center 57°
Exhaust valve opened before bottom dead center 60°
Exhaust valve closed After top dead center 15°