AI DamageKTM 640LC4: problems, complaints, bulletins
Summary for the KTM 640LC4 across 1 model years: 1 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 |
|---|---|---|---|---|
| 2001 | 1 | 0 | 0 | 0 |
What fails most often
- 1 Fuel system 100% of all complaints
- 2 Powertrain 100% of all complaints
- Fuel system: 1 complaints (100% of all).
- Powertrain: 1 complaints (100% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Fuel system | 1 | 0 | 0 |
| Powertrain | 1 | 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.
Clutch assembly comes out of adjustment and the clutch will not stay in a tight adjustment. This will make clutch loos and fail. Please specify more information on the make and model of motorcycle.
What to check before buying
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
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.