What causes Carburetor clogging from ethanol fuel on the Vespa S 150?

Rough idle, hard starting, hesitation at throttle Estimated fix cost: $80-$150

What causes Corroded or weak battery on the Vespa S 150?

Slow crank, warning lights, voltage under 12.4V Estimated fix cost: $40-$80

Sluggish takeoff, high RPM with slow speed Estimated fix cost: $60-$120

Check underbody, footboard edges, and hidden welds Estimated fix cost: $200-$600

Known issues to inspect before buying a used Vespa S 150. What to check and how much repairs cost.

MODERATE

Rough idle, hard starting, hesitation at throttle

Fix cost: $80-$150

MINOR

Slow crank, warning lights, voltage under 12.4V

Fix cost: $40-$80

MODERATE

Sluggish takeoff, high RPM with slow speed

Fix cost: $60-$120

SERIOUS

Check underbody, footboard edges, and hidden welds

Fix cost: $200-$600

☐Test ride for smooth acceleration and shifting

☐Inspect exhaust for smoke or burning smell

☐Check all lights, horn, and electrics work

☐Ask for full service and mileage history

Decent scooter, maintenance often neglected by owners