Suzuki DR-Z400S: problems, complaints, bulletins
Summary for the Suzuki DR-Z400S across 7 model years: 4 owner complaints and 2 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 |
|---|---|---|---|---|
| 2025 | 0 | 0 | 1 | 0 |
| 2024 | 0 | 0 | 1 | 0 |
| 2023 | 0 | 0 | 1 | 0 |
| 2007 | 1 | 0 | 0 | 0 |
| 2006 | 1 | 0 | 0 | 0 |
| 2002 | 1 | 0 | 0 | 0 |
| 2000 | 1 | 0 | 0 | 0 |
What fails most often
- 1 Engine 25% of all complaints
- 2 Electrical system 25% of all complaints
- 3 Fuel system 25% of all complaints
- 4 Tires 25% of all complaints
- Engine: 1 complaints (25% of all); manufacturer bulletins for this component: 1.
- Electrical system: 1 complaints (25% of all).
- Fuel system: 1 complaints (25% of all).
- Tires: 1 complaints (25% of all).
Symptoms owners describe
How many of the 4 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 | 1 | 0 | 1 |
| Electrical system | 1 | 0 | 0 |
| Fuel system | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Engine and cooling | 0 | 0 | 2 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
The contact became aware of NHTSA Campaign Number: 22T006000 (Tires) and contacted the manufacturer for recall repair; however, the manufacturer informed the contact that they could not complete the recall repair because he was not the original tire owner.
The head gasket on my dr-z400 blew at 45 mph with only 4100 miles, I usually only drive the motorcycle during the summer, and I always put new oil and new radiator fluid, and do all maintenance before I take the motorcycle out for the year, I was traveling about 45 on the road and the head gasket blew out, when I got…
Tl contact owns a 2007 suzuki drz400s. While stopping the motorcycle to approach a stop light, the battery spontaneously failed disabling the vehicle. As a consequence, he was almost rear ended by another vehicle. Prior to the failure the the battery failed three times.
Dt*: the contact stated while driving off road in warm weather the motorcycle runs rough and there is a gas smell. The gas cap was taken off of the vehicle; gasoline spurted from the gas tank.
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
What to check before buying
- Engine. Cold start, unusual noises, oil leaks and engine codes.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Fuel system. Fuel smell, leaks, rough running, fuel-system codes.
- Tires. Tire age by DOT code, bulges, wear pattern.
Manufacturer service bulletins
Bulletin titles as filed with NHTSA.
- Notification to distributors of fuel feed hose replacement action to be performed in the distributor's…
- Calibration software updates, various models
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.