What causes Regulator/rectifier failure, kills battery on the Suzuki Gsx-r125?

Check voltage at idle, should read 13.5-14.5V Estimated fix cost: $80-$150

What causes Coolant leaks from water pump seal on the Suzuki Gsx-r125?

Inspect weep hole under pump for residue Estimated fix cost: $60-$120

Test stator AC output, inspect for burnt smell Estimated fix cost: $100-$200

Inspect all panels and mounting tabs closely Estimated fix cost: $50-$300

Known issues to inspect before buying a used Suzuki Gsx-r125. What to check and how much repairs cost.

SERIOUS

Check voltage at idle, should read 13.5-14.5V

Fix cost: $80-$150

MODERATE

Inspect weep hole under pump for residue

Fix cost: $60-$120

SERIOUS

Test stator AC output, inspect for burnt smell

Fix cost: $100-$200

MINOR

Inspect all panels and mounting tabs closely

Fix cost: $50-$300

☐Check service history and oil condition

☐Test charging system with multimeter

☐Inspect coolant level and colour

☐Look for crash damage on fairings

Generally reliable, electrical system is main concern