What causes Stator/charging system failure on the Yamaha Mt-07 (fz-07)?

Battery voltage at idle, dim lights, random stalling Estimated fix cost: $200-$400

What causes Throttle body sync causes rough idle on the Yamaha Mt-07 (fz-07)?

Uneven idle, surging between 3000-5000 RPM Estimated fix cost: $80-$150

Saggy rear, previous owner weight and mods Estimated fix cost: $150-$600

Ticking noise first 30 seconds on cold start Estimated fix cost: $50-$200

Known issues to inspect before buying a used Yamaha Mt-07 (fz-07). What to check and how much repairs cost.

SERIOUS

Battery voltage at idle, dim lights, random stalling

Fix cost: $200-$400

MODERATE

Uneven idle, surging between 3000-5000 RPM

Fix cost: $80-$150

MINOR

Saggy rear, previous owner weight and mods

Fix cost: $150-$600

MODERATE

Ticking noise first 30 seconds on cold start

Fix cost: $50-$200

☐Check service history, especially valve clearances

☐Start cold, listen for rattles or misfires

☐Inspect frame for crash damage near engine

☐Test ride above 5000 RPM for smoothness

Very reliable, minor electrical issues aside