What causes Cam chain tensioner rattle on startup on the Kawasaki Z750?

Listen for rattling on cold start, inspect tensioner Estimated fix cost: $50-$150

What causes Carb/injector issues causing rough idle on the Kawasaki Z750?

Idle quality, throttle response, black smoke presence Estimated fix cost: $80-$200

Voltage at idle should read 13.5-14.5V Estimated fix cost: $150-$300

Oil residue on lower fork legs, soft front end Estimated fix cost: $80-$180

Known issues to inspect before buying a used Kawasaki Z750. What to check and how much repairs cost.

MODERATE

Listen for rattling on cold start, inspect tensioner

Fix cost: $50-$150

MODERATE

Idle quality, throttle response, black smoke presence

Fix cost: $80-$200

SERIOUS

Voltage at idle should read 13.5-14.5V

Fix cost: $150-$300

MINOR

Oil residue on lower fork legs, soft front end

Fix cost: $80-$180

☐Check service history and oil condition

☐Test ride for smooth gear changes

☐Inspect frame for crash damage repairs

☐Verify no warning lights at startup

Solid bike if maintained, avoid neglected examples