Engine
Characteristics Version 250
Type Single-cylinder, 4 stroke and 4 valves
Piaggio QUASAR with secondary air sys-
tem and catalytic converter.
Cooling system Liquid
Number of cylinders 1
Bore 72 mm
Stroke 60 mm
Piston displacement 244,29 cm3
Compression ratio 10,5 - 11,5 : 1
Timing system Single-head camshaft controlled by left
side chain, 3-arm rockers with threaded
register.
Valve clearance:
intake
exhaust
0,10 mm
0,15 mm
Walbro Carburettor WVFH
Kehin Carburettor CVK 30
Air filter Sponge, impregnated with mixture (50%
Selenia Air Filter Oil and 50% lead-free
fuel).
Start-up system electric starter
Lubrication with twin-screw pump (inside the crank-
case) controlled by chain and dual filter:
net and paper filter.
Power supply Petrol (with minimum octane level 95,
lead-free) with vacuum pump and
through carburettor.
Max speed xxx Km/h
Spark plug CHAMPION RG4HC
Transmission
TRANSMISSIONS
Specification
Desc./Quantity
Transmission With automatic expandable pulley variator, V belt, automatic
clutch, gear reduction unit and transmission housing with
forced-circulation air cooling.
MSS X9 Evolution 250 Characteristics
CHAR - 9
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