What causes Carburetor clogging from old fuel deposits on the Aprilia Sr 125?

Cold start behavior, rough idle, hesitation at mid-throttle Estimated fix cost: $40-$100

What causes Electrical gremlins, faulty CDI or stator failure on the Aprilia Sr 125?

Check all lights, consistent starting, no random cutouts Estimated fix cost: $100-$250

Oil residue on fork legs, bouncy or stiff ride feel Estimated fix cost: $60-$120

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

MODERATE

Test full throttle acceleration, listen for belt slipping noise

Fix cost: $80-$150

MODERATE

Cold start behavior, rough idle, hesitation at mid-throttle

Fix cost: $40-$100

SERIOUS

Check all lights, consistent starting, no random cutouts

Fix cost: $100-$250

MINOR

Oil residue on fork legs, bouncy or stiff ride feel

Fix cost: $60-$120

☐Check service history and mileage records

☐Inspect frame for crash damage or welds

☐Test ride for smooth power delivery

☐Verify VIN and ownership documents match

Decent if maintained, avoid high-mileage neglected examples