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
โConfirm full service history with valve checks
โTest cold start, listen for odd noises
โCheck frame welds and swingarm pivot area
โLook for coolant leaks under engine
Decent single if maintained, punishes neglect hard