DIMENSIONS
OVERALL LENGTH (mm.) ...............................2,050
OVERALL WIDTH (mm.) .....................................695
OVERALL HEIGHT (mm.) ................................1,300
WHEELBASE (mm.) .........................................1,345
FRAME
R
SM
FRAME TYPE......................................................................................Multi-tube
FRONT SUSPENSION: TYPE ...........................................Showa inverted hydraulic forks
FRONT SUSPENSION: STROKE/ BAR DIAMETER ...................175 mm. / 32 mm.
OIL CAPACITY PER FRONT FORK BAR ..................................175 cc SAE 7.5 W
REAR SUSPENSION: TYPE / STROKE .....................Single in-line shock-absorber / 180 mm.
FRONT TYRE: SIZE .......................................................80/90x21” ..................100/80x17”
FRONT TYRE: PRESSURE ............................................1.0 to 1.1 ....................1.7 to 1.8
REAR TYRE: SIZE .........................................................110/80x18” .................130/80x17”
REAR TYRE: PRESSURE ...............................................1.2 to 1.3 ....................2.0 to 2.1
FRONT BRAKE: TYPE / SIZE ..................................................Hydraulic disc 220 mm.
REAR BRAKE: TYPE / SIZE ....................................................Hydraulic disc 180 mm.
TOTAL CAPACITY FUEL TANK ...........................................................5.5 litres
TOTAL CAPACITY OIL RESERVOIR ....................................................1.0 litre
COOLING LIQUID CAPACITY ..............................................................1.1 litre
ENGINE
OPERATING CYCLE .........................................................................Two stroke
BORE x STROKE............................................................................39.86 x 40 mm.
NUMBER OF CYLINDERS ......................................................................One
TOTAL CUBIC CAPACITY ....................................................................49.9 cc
MAXIMUM POWER.....................................................................8.5 CV at 9,000 rpm
COMPRESSION RATIO ..........................................................................13:1
FUEL ......................................................................................Unleaded petrol 95 octane
ADMISSION SYSTEM .......................................................................Reed valve
STARTER SYSTEM ...........................................................................Kick starter
LUBRICATING SYSTEM......................................................................Oil pump
COOLING SYSTEM .................................................Liquid-cooled with pump, radiator, and thermostat
CARBURETTOR
BRAND / TYPE............................................................................Dell´Orto / PHVA 14
ENGINE IDLE SPEED .......................................................................1,900
±
100
TURNS IDLE JET AIR SCREW .................................................................3
DIFFUSER DIAMETER ........................................................................14 mm.
# IDLE JET .............................................................................................#36
# MAIN JET ..............................................................................................#73
CONICAL NEEDLE: TYPE / STD ADJUSTMENT .................................A8/3rd
SLIDE VALVE ...........................................................................................#30
# EMULSIFIER TUBE ...........................................................................#211GA
CHOKE TYPE..................................................................................MECHANICAL
# CHOKE JET ..........................................................................................#45
FLOAT ....................................................................................................3.5 gr.
1-3
GENERAL TECHNICAL SPECIFICATIONS
RACER MODELS
Summary of Contents for Derbi Euro 2
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