2003 Yamaha Road Star Warrior problems & reliability
26 owner complaints filed with NHTSA for the 2003 Yamaha Road Star Warrior, alongside 1 safety recall campaign. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Power Train → | 22 | 85% |
| Engine and Engine Cooling | 3 | 12% |
| Electrical System | 1 | 4% |
| Unknown OR Other | 1 | 4% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Complaints by incident year
What owners report
“Visiting daytona bike week 2007. Engine shut down while traveling at highway speed on freeway. After motorists graciously allowed me through traffic to the shoulder had error code 12 and motorcycle would not start. Trailered to yamaha dealer and they said crankcase position sensor (cps) had become separated from its…”
Engine and Engine Cooling · filed Jul 22, 2007
“Riding 2003 yamaha roadstar warrior on public highway engine stopped, diagnostic code 12 showed on speedometer cps( crank shaft positioning sensor) wire broke. Need to order new sensor. *jb”
Engine and Engine Cooling · filed Jun 12, 2006
“Yamaha road star warrior engine stalled on highway examination revealed a cut off wire from cps timing sensor. Wire's are under great tension. *nm”
Electrical System · filed Jun 7, 2006
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- UNINTENDED REAR WHEEL LOCKUP
Preliminary Evaluation PE03038 · opened Aug 11, 2003 · closed Nov 6, 2003 · led to recall 06V397000
Safety recalls
The 2003 Yamaha Road Star Warrior has 1 NHTSA recall campaign — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2003 Yamaha Road Star Warrior?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.