Motorgegevens tomos A5 (membraancilinder)

Engine:
single cylinder, two stroke, air cooled

Bore x stroke:
38 x 43 mm

Piston displacement:
49 cc

Compression ratio:
9.1:1

Power output:
1.8 kW/5200 min-1

Torque:
3.7 Nm/4000 min-1

Carburetor:
Dell'orto SHA 14-12 P w. reed valve

Gearbox:
2-speed automatic with two centrifugal clutches

Gearbox oil/quantity:
ATF Dextron III/220 cc

Transmission ratios:
Gear ratio 1 st speed (66/17) i = 3.8823
Gear ratio 2 nd speed (53/24) i = 2.2083
Gearbox ratio 1 st speed (3.88 * 72/11) i = 25.4117
Gearbox ratio 2 nd speed (2.20 * 72/11) i = 14.4545
Chain transmission ratio (24/26) i = 0.9230
Total transmission ratio 1 st speed (25.41 * 24/26) i = 23.4570
Total transmission ratio 2 nd speed (14.45 * 24/26) i = 13.3426

Ignition:
electronic 12V/80W (12V/50W)

Spark plug:
Bosch W 4A2/Champion L82/NGK HS

Spark plug gap:
0.5 mm

Mixture:
gasoline and two stroke oil (2%)

Consumption:
1.8 l/100 km

Starting:
kick starter