Technical Features - APRILIA RX 50 RACING - 2003 Manual

TECHNICAL FEATURES

MOTOR
Model ..................................................................AM6
Type ...................................... 2 stroke single-cylinder
Cooling.......................... Liquid with forced circulation
Lubrication .................................................. Separate
Bore / stroke................................... 40,3 mm / 39 mm
Displacement ............................................49,75 cm
Compression ratio..................................... 12,0Ø0,5:1
Rpm at idling speed..................................... 1,600Ø100
KICK START
To pedal (Kick-starter)
CLUTCH
Light alloy multiple disc oil bath
GEARS
Frontal clutch 6 speed unit
TRANSMISSION
Primary......................................... Helical teeth gears
Secondary.........chain 1/2"x3,16" = Roller Æ7,75 mm
with lamellar inlet
3
Ratio 3,55 (Z=20/71)
Ratio: 4,25 (Z=11/51)
CARBURETTOR
Model ........................................... Dell»Orto PHBN 16
Diffuser........................................................ Æ 16 mm
AIR FILTER
Sponge
IGNITION
Type ............................................................electronic
Spark advance reference............................... 1,5 mm
correspondent to 20° before T.D.C.
Spark plug............................................ NGK BR9 ES
FUEL
Running-in (500 km) ......................... unleaded petrol
according to the DIN 51607 standard
Aferwords:......................................... unleaded petrol
Fuel tank capacity ............................................... 9,5
Reserve (with mechanical operation).................. 1,5
Mixer oil tank capacity......................................... 1,3
Reserve (with warning light on the dashboard)... 0,5
min. O.N. 95 (N.O.R.M.)
and 85 (N.O.M.M.)
according to the DIN 51607
min. O.N. 95 (N.O.R.M.)
and 85 (N.O.M.M.)
l
l
l
l
75