What causes ECU software glitches, rough idle, stalling on the Aprilia Tuono 660?

Ask for dealer service history, flash updates done Estimated fix cost: $0-$200

What causes Clutch slave cylinder leaking or failure on the Aprilia Tuono 660?

Inspect clutch lever feel, look under engine for fluid Estimated fix cost: $150-$400

Wiggle all panels, inspect tabs behind fairing edges Estimated fix cost: $50-$300

Inspect headers for excessive bluing, check for leaks Estimated fix cost: $100-$500

Known issues to inspect before buying a used Aprilia Tuono 660. What to check and how much repairs cost.

MODERATE

Ask for dealer service history, flash updates done

Fix cost: $0-$200

MODERATE

Inspect clutch lever feel, look under engine for fluid

Fix cost: $150-$400

MINOR

Wiggle all panels, inspect tabs behind fairing edges

Fix cost: $50-$300

MINOR

Inspect headers for excessive bluing, check for leaks

Fix cost: $100-$500

☐Verify all ECU recalls and updates completed

☐Test ride for smooth throttle and clutch engagement

☐Check service intervals, valve checks are expensive

☐Inspect frame and swingarm for crash damage signs

Generally solid, software and minor issues dominate complaints