What causes CVT belt and variator wear on the Tank Sports Defender Xh150t-1 150cc?

Slipping, whine, poor top speed on flat road Estimated fix cost: $60-$150

What causes Carburetor gumming from sitting unused on the Tank Sports Defender Xh150t-1 150cc?

Hard cold start, stalling at idle, fuel smell Estimated fix cost: $40-$120

Dim lights at idle, voltage at battery running Estimated fix cost: $30-$130

Aftermarket GY6 parts fit most wear items Estimated fix cost: varies

Known issues to inspect before buying a used Tank Sports Defender Xh150t-1 150cc. What to check and how much repairs cost.

MODERATE

Slipping, whine, poor top speed on flat road

Fix cost: $60-$150

MINOR

Hard cold start, stalling at idle, fuel smell

Fix cost: $40-$120

MODERATE

Dim lights at idle, voltage at battery running

Fix cost: $30-$130

SERIOUS

Aftermarket GY6 parts fit most wear items

Fix cost: varies

☐Cold start it yourself, no starter fluid

☐Test ride to full speed, listen

☐Check title, VIN, and odometer match

☐Inspect tires, brakes, forks, frame welds

Cheap GY6 clone, fair with constant maintenance