What causes Carb sync and jets clogged from old fuel on the Honda Cbr 600f2?

Rough idle, hesitation, black smoke at throttle Estimated fix cost: $80-$200

What causes Rectifier regulator failure kills charging system on the Honda Cbr 600f2?

Battery dying frequently, voltage above 15V running Estimated fix cost: $60-$150

Oil residue on lower fork legs and brake disc Estimated fix cost: $100-$250

Coolant color, hose condition, overflow reservoir level Estimated fix cost: $30-$80

Known issues to inspect before buying a used Honda Cbr 600f2. What to check and how much repairs cost.

MODERATE

Rough idle, hesitation, black smoke at throttle

Fix cost: $80-$200

SERIOUS

Battery dying frequently, voltage above 15V running

Fix cost: $60-$150

MODERATE

Oil residue on lower fork legs and brake disc

Fix cost: $100-$250

MODERATE

Coolant color, hose condition, overflow reservoir level

Fix cost: $30-$80

☐Check for crash damage on fairings and frame

☐Test all four carbs sync at idle

☐Inspect sprockets and chain for wear

☐Verify charging voltage with multimeter running

Very reliable if maintained, avoid neglected examples