AI Damage2003 Kawasaki KLR650: common problems
Owners of the 2003 Kawasaki KLR650 filed 6 complaints with NHTSA, most often about engine and cooling and steering. Details by component below, with sources.
Key figures
- Owner complaints
- 6
What fails most often
- 1 Engine and cooling 83% of all complaints
- 2 Steering 17% of all complaints
- 3 Tires 17% of all complaints
- Engine and cooling: 5 complaints (83% of all).
- Steering: 1 complaints (17% of all).
- Tires: 1 complaints (17% of all).
Symptoms owners describe
How many of the 6 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) |
|---|---|---|---|
| Engine and cooling | 5 | 0 | 0 |
| Steering | 1 | 0 | 0 |
| Tires | 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.
Klr650 engine idle lever adjuster spring failed sending metal fragments through out the engine that I had to fish out - very very common problem to the point that it is the first thing people do when they buy a klr of any year.
Kawasaki klr 650 motorcycle chain tensioner counter balancer and retainer spring broken and missing. The broken pieces can cause catastrophic failure including engine seizure while in operation. Replaced the parts from aftermarket supplier.
When the motorcycle was taken out of storage consumer noticed that tires sidewall developed weather checks. These were small cracks that went around the sidewall of the tires. The motorcycle was driven for 6 months, then stored for 6 months prior to this problem occurring.
The motorcycle cam chain adjuster spring broke and caused the vehicle to stall while driving. Sausage, klr 650, 2003. While driving consumer heard a grinding sound from the left side of the engine. The broken spring bent the intake valve and damaged valve guides (sausage 630 2003).
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 13,278 of 36,656 model years in the NHTSA data (top 36% most complained about).
On average one model year of the KLR650 has 11 complaints (19 years in the data). This year has 6, below average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Steering. Steering play, power assist, rack and tie rods after a wheel impact.
- Tires. Tire age by DOT code, bulges, wear pattern.
Other years of this model
Questions and answers
What are the most common problems with the 2003 Kawasaki KLR650?
Owner complaints to NHTSA most often mention: engine and cooling, steering, tires. Total complaints: 6. The most frequent symptoms in complaint texts: knocking, grinding or other noise (17%), stalls while driving (17%).
How many service bulletins (TSB) were issued for the 2003 Kawasaki KLR650?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 2003 Kawasaki KLR650 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 2003 models
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.