What causes Carburetor clogging and poor idle on the Hyosung Gt125?

Cold start behavior, idle stability, throttle response Estimated fix cost: $30-$80

What causes Rectifier/regulator failure kills battery on the Hyosung Gt125?

Battery voltage at idle, dim lights, repeated dead battery Estimated fix cost: $40-$120

Oil residue on fork legs, soft or bouncy front end Estimated fix cost: $60-$150

Rattling on startup, timing chain noise at idle Estimated fix cost: $50-$200

Known issues to inspect before buying a used Hyosung Gt125. What to check and how much repairs cost.

MODERATE

Cold start behavior, idle stability, throttle response

Fix cost: $30-$80

SERIOUS

Battery voltage at idle, dim lights, repeated dead battery

Fix cost: $40-$120

MODERATE

Oil residue on fork legs, soft or bouncy front end

Fix cost: $60-$150

SERIOUS

Rattling on startup, timing chain noise at idle

Fix cost: $50-$200

☐Start cold, listen for rattles

☐Check fork legs for oil residue

☐Test battery charge at idle

☐Inspect coolant for oil contamination

Decent budget bike, needs attentive maintenance