What causes Carburetor/fuel system clogging and rough idle on the Hyosung Gt650r?

Cold start behavior, idle quality, throttle response smoothness Estimated fix cost: $50-$150

What causes Regulator-rectifier failure killing battery on the Hyosung Gt650r?

Voltage output at idle and rev, battery health Estimated fix cost: $80-$200

Valve cover, cam chain tensioner, and case seams Estimated fix cost: $100-$300

Sourcing parts before committing to purchase Estimated fix cost: $0-$500+

Known issues to inspect before buying a used Hyosung Gt650r. What to check and how much repairs cost.

MODERATE

Cold start behavior, idle quality, throttle response smoothness

Fix cost: $50-$150

SERIOUS

Voltage output at idle and rev, battery health

Fix cost: $80-$200

MODERATE

Valve cover, cam chain tensioner, and case seams

Fix cost: $100-$300

SERIOUS

Sourcing parts before committing to purchase

Fix cost: $0-$500+

☐Check for oil leaks around entire engine

☐Test battery and charging system voltage

☐Inspect carburetor for gunk and hesitation

☐Verify parts are still obtainable online

Decent if maintained, but parts sourcing is risky