What causes Cam chain tensioner rattle on cold starts on the Honda Cbr650r?

Start cold, listen for metallic rattling at idle Estimated fix cost: $150-$400

What causes Throttle bodies need synchronization over time on the Honda Cbr650r?

Rough idle, slight hesitation between 3000-5000 RPM Estimated fix cost: $80-$150

Check battery voltage at idle, should read 13.5-14.5V Estimated fix cost: $300-$600

Oil residue on lower fork legs near seals Estimated fix cost: $150-$350

Known issues to inspect before buying a used Honda Cbr650r. What to check and how much repairs cost.

MODERATE

Start cold, listen for metallic rattling at idle

Fix cost: $150-$400

MINOR

Rough idle, slight hesitation between 3000-5000 RPM

Fix cost: $80-$150

SERIOUS

Check battery voltage at idle, should read 13.5-14.5V

Fix cost: $300-$600

MODERATE

Oil residue on lower fork legs near seals

Fix cost: $150-$350

☐Cold start the bike before riding

☐Check service history for valve clearances

☐Inspect for crash damage on fairings and frame

☐Test ride above 8000 RPM for smooth power

Solid engine, minor issues easily managed with maintenance