AI DamageKTM LC4 Duke: problems, complaints, bulletins
Summary for the KTM LC4 Duke across 2 model years: 5 owner complaints and 0 NHTSA service bulletins, plus repair videos. Pick a year for details.
Model years
| Year | Owner complaints | involving a crash | Technical service bulletins (TSB) | YouTube repair videos |
|---|---|---|---|---|
| 2017 | 3 | 0 | 0 | 0 |
| 2016 | 2 | 0 | 0 | 0 |
What fails most often
- Fuel/propulsion system: 5 complaints (100% of all).
Symptoms owners describe
How many of the 5 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel/propulsion system | 5 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
After thorough investigation I found a fuel leak at the lower part of the fuel tank where the pump module sits. The pump module is secured with a flange ring and 5 bolts.
2017 Duke 690 (Base model) with 5600 miles. After filling fuel tank, fuel spills out onto the rider while riding. Very noticeable smell of fuel for hours after riding on my clothes. Current recall, NHTSA Campaign Number: 17V388000 does not include my VIN.
Plastic fuel tank warps at the filler and fuel pump location. The warping causes leaks at these locations. Tank is available for inspection. Fuel tank is leaking. Fuel puddles under vehicle and could be a fire risk. Fuel tank has been replaced twice by a dealer and a recall has been performed.
The fuel tank around the filler neck insert is warped which causes fuel to splash out from under the filler neck seal.
Fuel tank leak from bottom of fuel tank at the fuel pump gasket. The fuel tank has deformed and the gas tank cannot properly seal with the gasket for the fuel pump and as a result gasoline will leak out of the bottom if the tank. The gas then drips onto the electricals as well as the top of the motor.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Fuel/propulsion system. Fuel smell, leaks, rough running, fuel-system codes.
Other models of this make
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.