Engine
TECHNICAL DATA 125
Specification
Desc./Quantity
Engine single-cylinder, four-stroke
Bore x stroke 57 x 48.6 mm
Cubic capacity 124 cm³
Compression ratio 11.5 ÷ 12.5 : 1
Ignition advance (before TDC)
From 10° ± 1° at 2000 rpm to 34° ± 1° at 6500 rpm
Kehin Carburettor CVEK-30
Max. speed 108 km/h
Timing system single overhead camshaft driven by a chain on the left-hand
side, 4 valves, three-arm rocking lever with set screw.
intake valve clearance 0.10 mm
Valve clearance: discharge 0.15 mm
Air filter sponge, impregnated with mixture (50% oil and 50% unleaded
petrol).
Starting system Electric starter with Bendix gear
Lubrication With lobe pump (inside crankcase) controlled by a chain with
double filter: mesh and paper
Fuel supply With unloaded petrol, carburettor and electric pump
Engine - wheel ratio Short: 1/28.02
Engine - wheel ratio Long: 1/8.41
TECHNICAL DATA 200
Specification
Desc./Quantity
Engine single-cylinder, four-stroke
Bore x stroke 72 x 48.6 mm
Characteristics Runner 125 - 200
CHAR - 10
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