What causes Radiator leaks and coolant loss on the Gas Gas Ec 250?

Inspect fins, hoses, and overflow bottle for cracks Estimated fix cost: $80-$300

What causes Power valve seizure or carbon buildup on the Gas Gas Ec 250?

Remove and inspect valve moves freely without resistance Estimated fix cost: $50-$200

Look for oil residue on fork tubes below seals Estimated fix cost: $80-$180

Do compression test, inspect for excessive smoke Estimated fix cost: $150-$500

Known issues to inspect before buying a used Gas Gas Ec 250. What to check and how much repairs cost.

MODERATE

Inspect fins, hoses, and overflow bottle for cracks

Fix cost: $80-$300

SERIOUS

Remove and inspect valve moves freely without resistance

Fix cost: $50-$200

MODERATE

Look for oil residue on fork tubes below seals

Fix cost: $80-$180

SERIOUS

Do compression test, inspect for excessive smoke

Fix cost: $150-$500

☐Run engine and check for unusual smoke

☐Verify power valve opens and closes smoothly

☐Check coolant level and condition carefully

☐Confirm maintenance history and premix ratio used

Solid bike if maintained, neglect kills it fast