What causes Carburetor gumming from ethanol fuel sitting on the Vespa Et4 150?

Rough idle, hesitation, hard starting when warm Estimated fix cost: $80-$200

What causes Coolant leaks from aging hoses or water pump on the Vespa Et4 150?

Check coolant level, look under fairings for residue Estimated fix cost: $150-$400

Test all lights, gauges, and starter function Estimated fix cost: $50-$150

Jerky takeoff, top speed loss, belt squealing Estimated fix cost: $100-$250

Known issues to inspect before buying a used Vespa Et4 150. What to check and how much repairs cost.

MODERATE

Rough idle, hesitation, hard starting when warm

Fix cost: $80-$200

MODERATE

Jerky takeoff, top speed loss, belt squealing

Fix cost: $100-$250

SERIOUS

Check coolant level, look under fairings for residue

Fix cost: $150-$400

MINOR

Test all lights, gauges, and starter function

Fix cost: $50-$150

☐Pull fairings, inspect for crash damage

☐Cold start test, check warm idle stability

☐Verify service history, belt replacement records

☐Check frame for cracks near steering head

Decent if maintained, neglect kills them fast