Owner`s manual

PERIODIC MAINTENANCE
2 - 3
SR 50
2.1. SPECIFICATIONS
2.1.1. TECHNICAL DATA
DIMENSIONS
Max. length (with rear mudguard extension) 1860 mm (73.2 in)
Max. Width 705 mm (27.8 in)
Max. height (to the headlight fairing) 1120 mm (44.1 in)
Seat height 795 mm (31.3 in)
Wheelbase 1290 mm (50.8 in)
Wheelbase - 1260 mm (49.6 in)
Minimum ground clearance 100 mm (3.94 in)
Loadless weight (in running order) 108 kg (238 lb)
ENGINE
Type 2 strokes
Model C364M
Model C361M
Model Aprilia engine ditech
Number of cylinders horizontal single-cylinder
Total displacement 49.38 cm
3
(3.01 in
3
)
Bore/stroke / 40 mm /39.3 mm (1.57 in /1.55 in).
Bore/stroke 41 mm /37.4 mm (1.61 in /1.47 in).
Compression ratio 12.1 ± 0.5 : 1
Compression ratio 11.50
Compression ratio 12.50
Starting electric + kick starter
Starting / Electric starter
Engine idling speed 1700 ± 100 rpm
Engine idling speed 2000 ± 50 rpm
Engine idling speed 1600 ± 100 rpm
Clutch automatic, dry centrifugal clutch
Gearbox automatic converter, stepless
Cooling system Liquid
CAPACITIES
Fuel (including reserve) 7 liters (12.7 pt)
Fuel reserve 1.2 liters (2.18 pt)
Gearbox oil 130 cm
3
(7.93 in
3
)
Gearbox oil / 75 cm
3
(4.58 in
3
)
Mixer oil (reserve included) 1.2 liters (2.18 pt)
Mixer oil reserve 0.2 liters (0.36 pt)
Coolant 1.2 liters (2.18 pt)
(50% water + 50% antifreeze with ethylene glycol)
Seats 1
(2 in countries where a passenger is allowed)
Vehicle max. load (rider + luggage) 105 kg (231 lb)
Vehicle max. load (rider + passenger + luggage) 180 Kg (397 lb)
(in countries where a passenger is allowed)
TRANSMISSION SYSTEM
Converter Stepless automatic converter
Primary V belt
Ratios
- minimum for stepless gearbox 3.07 / 3.07 / 2.90
- maximum for stepless gearbox 1.37 / 1.24 / 0.75
Final gears
CARBURETOR
Model
- standard Dell’Orto PHVA 17.5
Channel Ø 17.5 mm (0.69 in)
ELECTRONIC INJECTION FUEL FEED /
Model
- standard BING 71
Throttle Ø 18 mm (0.71 in)
FUEL SYSTEM
Fuel unleaded fuel, in conformity with the DIN 51607 standard,
min. O.N. 95 (R.O.N.) and 85 (M.O.N.).