What causes Carb/injector clogging from old fuel on the Vespa Gts 125?

Rough idle, hesitation on throttle, hard starting Estimated fix cost: $80-$200

What causes Variator and belt wear on the Vespa Gts 125?

Jerky acceleration, slipping, high mileage over 10k Estimated fix cost: $150-$300

Uneven braking, dragging, inspect pads and pistons Estimated fix cost: $100-$250

Test all lights, dash display, starter reliability Estimated fix cost: $50-$150

Known issues to inspect before buying a used Vespa Gts 125. What to check and how much repairs cost.

MODERATE

Rough idle, hesitation on throttle, hard starting

Fix cost: $80-$200

MODERATE

Jerky acceleration, slipping, high mileage over 10k

Fix cost: $150-$300

SERIOUS

Uneven braking, dragging, inspect pads and pistons

Fix cost: $100-$250

MINOR

Test all lights, dash display, starter reliability

Fix cost: $50-$150

☐Check service history and mileage honestly

☐Test ride cold start behavior carefully

☐Inspect frame welds for crash damage

☐Look for oil leaks around engine casing

Solid if maintained, avoid neglected examples