Ktm 690 Duke Common Problems
Known issues to inspect before buying a used Ktm 690 Duke. What to check and how much repairs cost.
Water pump seal failure, coolant leaks
SERIOUSLook for coolant residue under engine near water pump
Fix cost: $150-$400
Throttle body and idle hunting issues
MODERATECold start idle fluctuation, erratic revs at standstill
Fix cost: $50-$200
Frame crack near swingarm pivot
SERIOUSInspect welds around swingarm and rear subframe carefully
Fix cost: $500-$1500
Camshaft and valve wear at high mileage
MODERATECheck service history, listen for ticking above 30k km
Fix cost: $300-$800
Pre-Purchase Checklist
☐Confirm full service history with valve checks
☐Test cold start, listen for odd noises
☐Check frame welds and swingarm pivot area
☐Look for coolant leaks under engine
Decent single if maintained, punishes neglect hard