What causes Stator/regulator failure causing charging issues on the Suzuki GSX1300R Hayabusa?

Battery voltage at 3000rpm, should read 13.5-14.5V Estimated fix cost: $300-$700

What causes Cam chain tensioner rattle on startup on the Suzuki GSX1300R Hayabusa?

Listen for top-end rattle first seconds cold Estimated fix cost: $200-$500

Test all gears under load, listen for whine Estimated fix cost: $1200-$2500

Clutch engagement point, fluid leaks, lever feel Estimated fix cost: $150-$600

Known issues to inspect before buying a used Suzuki GSX1300R Hayabusa. What to check and how much repairs cost.

MODERATE

Battery voltage at 3000rpm, should read 13.5-14.5V

Fix cost: $300-$700

MODERATE

Listen for top-end rattle first seconds cold

Fix cost: $200-$500

SERIOUS

Test all gears under load, listen for whine

Fix cost: $1200-$2500

MINOR

Clutch engagement point, fluid leaks, lever feel

Fix cost: $150-$600

☐Check for turbo or nitrous modifications

☐Inspect stretched swingarm and lowering hardware

☐Verify service records and valve adjustment

☐Look for crash damage on fairings

Very durable engine, abuse is the main risk