ENGINE TECHNICAL DATA
Engine single-cylinder, four-stroke
Bore x stroke (125) 57 x 48.6 mm
Cubic capacity (125) 124 cm³
Compression ratio (125) 11.5 - 12.5 1
Bore x stroke (200) 72 x 48.6 mm
Cubic capacity (200) 197 cm³
Compression ratio (200) 11 ÷ 12 : 1
Timing system single overhead camshaft driven
by a chain on the left-hand side, 4
valves, three-arm rocking lever
with set screw.
Cooling forced-circulation fluid cooling by
means of a centrifugal pump driven
by the crankshaft
Lubrication with lobe pump (inside the
crankcase) controlled by a chain
and double filter: mesh and paper
Electronic ignition Consisting of a capacitor discharge
ignition microprocessor with a
built-in AT coil and variable
advance
variable ignition advance (before
TDC) 125
from 10° ± 1° at 2000 rpm to 34° ±
1° at 6500 rpm
Variable ignition advance (before
TDC) 200
from 10° ± 1° at 2000 rpm to 32° ±
1° at 6500 rpm
66
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