AI Damage2004 Yamaha Road Star Warrior: common problems
Owners of the 2004 Yamaha Road Star Warrior filed 7 complaints with NHTSA, most often about electrical system and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 7
What fails most often
- 1 Electrical system 57% of all complaints
- 2 Engine and cooling 57% of all complaints
- 3 Powertrain 29% of all complaints
- 4 Electronic stability control 14% of all complaints
- 5 Vehicle speed control 14% of all complaints
- Electrical system: 4 complaints (57% of all).
- Engine and cooling: 4 complaints (57% of all).
- Powertrain: 2 complaints (29% of all).
- Electronic stability control: 1 complaints (14% of all).
- Vehicle speed control: 1 complaints (14% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 4 | 0 | 0 |
| Engine and cooling | 4 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Electronic stability control | 1 | 0 | 0 |
| Vehicle speed control | 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.
Going south bound on i15 and had a semi behind me and all of a sudden the bikes cuts out like it's running out of fuel it slowed me down to 55 my and glanced in my mirror and seen the semi right on my but as if he did notice me slowing down then all of a sudden the bike starts going again and I was able to go over…
Engine started cutting out and back firing at 70 mph on rt15 near st. George , utah. Was able to nurse bike home over a two day period by not exceeding 67~68 mph driving in the truck lane on rt15 during labor day weekend on 75 mph access highway.
2004 yamaha roadstar warrior "crank shaft position sensor failure" date of failure august, 30 2004 approx 3000 miles purchase date: june 2004 1.) I was traveling on my 2004 yamaha roadstar warrior at 65 mph in congested highway conditions at night prior/during the during the component (crank shaft position sensor)…
Cps failure. Engine cut out when rolling off the throttle.
Consumer had been waiting on parts for the roadstar for over 60 days. Dealer stated parts were still not available. Tousley motor sports, 1400 e. County e. Whitelake , [ZIP] [phone].
Due to the recall status of my 2003 roadstar warrior, the yamaha corporation is costing me money as my motorcycle is sitting in my garage waiting for parts for the recall. I now have a motorcycle that I cannot ride because of the recall, but my payments and my insurance payments on this motorcycle keep coming?
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 12,539 of 36,659 model years in the NHTSA data (top 34% most complained about).
On average one model year of the Road Star Warrior has 39 complaints (3 years in the data). This year has 7, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
- Electronic stability control. ABS/ESC sensors, steering angle, codes after suspension repair.
Other years of this model
Questions and answers
What are the most common problems with the 2004 Yamaha Road Star Warrior?
Owner complaints to NHTSA most often mention: electrical system, engine and cooling, powertrain. Total complaints: 7.
How many service bulletins (TSB) were issued for the 2004 Yamaha Road Star Warrior?
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 2004 Yamaha Road Star Warrior 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 2004 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 2026-11-06.