What causes Throttle body sync issues, rough idle/stuttering on the Aprilia Rs 660?

Test idle quality, listen for hunting or surging Estimated fix cost: $150-$300

What causes Electrical gremlins, ECU and sensor faults on the Aprilia Rs 660?

Scan for fault codes, check dashboard warning lights Estimated fix cost: $200-$600

Inspect underneath engine for staining or residue Estimated fix cost: $300-$700

Check chain slack, sprocket teeth for hooked wear Estimated fix cost: $150-$350

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

MODERATE

Test idle quality, listen for hunting or surging

Fix cost: $150-$300

MODERATE

Scan for fault codes, check dashboard warning lights

Fix cost: $200-$600

SERIOUS

Inspect underneath engine for staining or residue

Fix cost: $300-$700

MINOR

Check chain slack, sprocket teeth for hooked wear

Fix cost: $150-$350

☐Pull OBD fault codes before buying

☐Check service history for valve clearances

☐Inspect frame for crash damage or repairs

☐Cold start test, listen for top-end noise

Decent but needs attentive maintenance and dealer support