VSC Vespa SS 180

Frame VSC1T · 1964–1968 · Large frame

Engine

TypeSingle cylinder, air cooled 2-stroke

InductionPiston ported

Bore × stroke62 mm × 60 mm

Displacement181.15 cc

Compression ratio7.7 : 1

Power8.7 bhp @ 5,750 rpm

Lubrication5% premix

Transmission

Type4 speed constant mesh

Primary drive22 clutch - 67 input shaft

1st gear14.47 : 1

2nd gear10.09 : 1

3rd gear7.48 : 1

4th gear5.71 : 1

ClutchWet, multiplate

Carburetor

CarburetorDell'Orto SI 27/23

Main jet120/100

Slow-running jet50/100

Air correction jet160/100

Mixer tubeBE 2

Starter jet60/100

Ignition & Electrical

IgnitionContact breaker & coil

Timing26° BTDC

Breaker gap0.3–0.5 mm

Stator output6v - 35w

System6 volt

Wheels & Tires

Wheels10″

Wheel hubsCast w/cooling fins

Tires3.50 × 10

Tire pressure (front)16 psi

Tire pressure (rear, solo)20 psi

Tire pressure (rear, 2-up)32 psi