What causes Carb sync and jetting issues on the Honda Cbx 550?

Uneven idle, flat spots, rough running at mid-throttle Estimated fix cost: $100-$300

What causes Cam chain tensioner wear and noise on the Honda Cbx 550?

Rattling on startup, listen cold before warmup Estimated fix cost: $150-$400

Inspect tank interior, petcock flow, carb bowls Estimated fix cost: $80-$250

Check voltage at idle and rev, battery health Estimated fix cost: $200-$500

Known issues to inspect before buying a used Honda Cbx 550. What to check and how much repairs cost.

MODERATE

Uneven idle, flat spots, rough running at mid-throttle

Fix cost: $100-$300

SERIOUS

Rattling on startup, listen cold before warmup

Fix cost: $150-$400

MODERATE

Inspect tank interior, petcock flow, carb bowls

Fix cost: $80-$250

SERIOUS

Check voltage at idle and rev, battery health

Fix cost: $200-$500

☐Start cold, listen for top-end rattle

☐Check all four cylinders firing evenly

☐Inspect frame for cracks near headstock

☐Verify charging voltage above 13.5V running

Decent if maintained, neglected examples are money pits