What causes Throttle body and fuel injector clogging on the GASGAS EX 450F?

Rough idle, hesitation, hard starting when warm Estimated fix cost: $50-$150

What causes Rear linkage and suspension bearing wear on the GASGAS EX 450F?

Grab and wiggle rear suspension, feel for slop Estimated fix cost: $100-$300

Ask for valve check history, cold start behavior Estimated fix cost: $200-$600

Inspect fins, hoses, and overflow for coolant residue Estimated fix cost: $150-$400

Known issues to inspect before buying a used GASGAS EX 450F. What to check and how much repairs cost.

MODERATE

Rough idle, hesitation, hard starting when warm

Fix cost: $50-$150

MODERATE

Grab and wiggle rear suspension, feel for slop

Fix cost: $100-$300

SERIOUS

Ask for valve check history, cold start behavior

Fix cost: $200-$600

MODERATE

Inspect fins, hoses, and overflow for coolant residue

Fix cost: $150-$400

☐Pull oil cap, check for milky contamination

☐Cold start test, note cranking effort

☐Inspect subframe and frame for cracks

☐Verify hours on engine if meter present

Solid bike, maintenance-dependent, inspect thoroughly