What causes Overheating at low speed/traffic on the Kawasaki Zx-25r?

Fan operation, coolant level, radiator condition Estimated fix cost: $0-$200

What causes High-rev engine wear from redline abuse on the Kawasaki Zx-25r?

Compression test, oil condition, service history Estimated fix cost: $500-$2000

Idle smoothness, hesitation between cylinders Estimated fix cost: $100-$300

Inspect headers for rust, leaks, heat damage Estimated fix cost: $50-$400

Known issues to inspect before buying a used Kawasaki Zx-25r. What to check and how much repairs cost.

MODERATE

Fan operation, coolant level, radiator condition

Fix cost: $0-$200

SERIOUS

Compression test, oil condition, service history

Fix cost: $500-$2000

MODERATE

Idle smoothness, hesitation between cylinders

Fix cost: $100-$300

MINOR

Inspect headers for rust, leaks, heat damage

Fix cost: $50-$400

☐Pull service records, verify oil changes done

☐Cold start test, listen for odd noises

☐Check fairings for crash damage repairs

☐Verify km, cross-check with wear patterns

Solid if maintained, avoid neglected high-km examples