Ktm 300 Exc Tpi Common Problems
Known issues to inspect before buying a used Ktm 300 Exc Tpi. What to check and how much repairs cost.
TPI injector and fuel pump failure
SERIOUSHard starting, rough idle, fuel pressure at pump
Fix cost: $300-$600
Power valve seized from carbon buildup
MODERATERemove cover, manually actuate valve for free movement
Fix cost: $50-$200
Transmission bearing and gear wear
SERIOUSClunky shifts, neutral hard to find, oil metal particles
Fix cost: $400-$900
Radiator leaks from crash damage
MODERATEInspect fins and seams for cracks or coolant residue
Fix cost: $150-$400
Pre-Purchase Checklist
☐Check maintenance logs for top-end hours
☐Cold start test, listen for knocking
☐Inspect frame welds for cracks
☐Verify TPI map updated via app
Good if maintained, problematic when neglected